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Flatcar Container Linux vs Ubuntu Linux comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Flatcar Container Linux
Ranking in Operating Systems (OS) for Business
41st
Average Rating
8.0
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Ubuntu Linux
Ranking in Operating Systems (OS) for Business
2nd
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
152
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of November 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.7% compared to the previous year. The mindshare of Ubuntu Linux is 8.3%, down from 10.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Ubuntu Linux8.3%
Flatcar Container Linux0.9%
Other90.8%
Operating Systems (OS) for Business
 

Featured Reviews

YD
Senior Consultant at Capgemini
The solution is stable and allows us to make needed changes
The development teams could sharpen their skills.  They should offer applications on the net I have eight years of experience with Flatcar Container Linux. The version of Flatcar Container Linux that I am using is stable. The scalability of this product is fine. It allows us to make the needed…
reviewer2728158 - PeerSpot reviewer
Associate Cloud Operations Engineer at a tech vendor with 501-1,000 employees
Good compatibility and improvement needed in migration process
For long-term support, it has been good because in most enterprise environments, people still use Ubuntu Linux sixteen, which is quite obsolete now. Other enterprise versions do not support obsolete systems, so supportability is good in terms of Ubuntu Linux. For sustainability, it's quite a significant point of view for every organization. For us, Ubuntu Linux is the preferable way. For others, it might not be, so that is quite a subjective matter itself. The pinpoint of the problem is that they take time because they need specific information. We need to go to AWS first, and then they'll contact the Ubuntu Linux support team itself. This creates a two-way hop for us, which is why it's not that great. It's not really Ubuntu Linux's problem but rather the way we are accessing Ubuntu Linux. The migration part when migrating an application or one version of Ubuntu Linux to another is quite hectic. During the process, one or many applications might crash. That is something they could handle themselves, but I don't think that's something Ubuntu Linux will look into. During a migration project that I was handling, Ubuntu Linux was not completely compatible for the migration process from one application to another. This is an area they could improve in migrating from minor versions to major versions.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Flatcar's support is good, and the version I am using is stable and allows us to make needed changes."
"Ubuntu doesn't use a lot of resources, so I think that's pretty cool, and it's totally like Microsoft."
"I would recommend it because it is very stable, supports almost every new feature, and almost all open-source projects, with easy support available from the web and professionals."
"The initial setup is simple."
"Ubuntu provides a cheaper and better option, and we use Ubuntu Linux because it is scalable, stable and developer-friendly."
"Stable and easy to use solution."
"The solution is stable and does not get infected with viruses."
"I like the flexibility, and I work on the command line."
"The GUI is user-friendly."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"Ubuntu could be improved with more container integration and orchestration of those containers. We are looking to have more cloud-based solutions, like Docker, and container-based solutions, or Kubernetes-based solutions integrated with Ubuntu. Instead of going for VMs, we would like to have more container-based solutions on top of Ubuntu."
"The solution has limited application support compared with Windows and MacOS."
"Lack of integration with other operating systems."
"The problem with the license costs for Ubuntu Linux right now is due to currency exchange, as everything is based on US dollars."
"Developing more applications for businesses could work better, but that is not part of the OS piece. Let the developers work on other apps, therefore the needs for consuming less memory do not affect the performance of this OS version."
"It is an open-source tool, and it doesn't have any support. If there is an issue with the implementation of a feature, such as clustering, I am not sure how to resolve it and get support for it. The stability of the vendor packages also impacts the stability of this solution. When vendor packages are unstable, or any packages are broken, they also impact Ubuntu Linux. It is very hard to resolve an issue related to unstable vendor packages."
"It is an open-source tool, and it doesn't have any support."
"Linux is still a bit of a second class citizen on enterprise desktop, because of active directory dominance."
 

Pricing and Cost Advice

Information not available
"We are using Ubuntu Linux free of cost, and there is no licensing."
"Ubuntu Linux is free for personal use, including business use."
"It is open source, so it is free. There is no licensing fee."
"This is a free solution."
"This solution is free."
"I use Ubuntu Linux free of cost."
"Ubuntu Linux is open-source and available to use free of charge."
"It is a free product."
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Top Industries

By visitors reading reviews
Comms Service Provider
26%
University
12%
Construction Company
9%
Manufacturing Company
7%
Comms Service Provider
13%
Financial Services Firm
10%
Manufacturing Company
9%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business86
Midsize Enterprise22
Large Enterprise54
 

Questions from the Community

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Which would you choose - Ubuntu Linux or Oracle Linux?
Ubunto Linux is a complete Linux operating system that is freely available with both community and professional support. This solution is suitable for both desktop and server use. It has a very app...
What is your experience regarding pricing and costs for Ubuntu Linux?
My experience with the pricing, implementation costs, and licenses of Ubuntu Linux shows that it is free software, so the licensing cost is zero. Having the Ubuntu Pro licensing option, where you h...
What needs improvement with Ubuntu Linux?
I think Ubuntu Linux could improve in the area of packages, as Snap packages are being imposed on us and we are migrating to certain versions where we are losing APT. To have a pure terminal experi...
 

Also Known As

No data available
Ubuntu
 

Overview

 

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