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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 September 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.6% compared to the previous year. The mindshare of Ubuntu Linux is 8.1%, down from 11.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Ubuntu Linux8.1%
Flatcar Container Linux0.9%
Other91.0%
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."
"I definitely recommend Linux Ubuntu."
"It is stable and modern."
"Doesn't require significant manual configuration."
"The most valuable feature of this solution is that Linux has cost-effective licenses."
"What I like best is the way in which packages are managed."
"The most valuable features of Ubuntu Linux is the reliability, the ease of package management, and the ease of upgrading from one version to the next."
"Compatibility with hardware is very good with Ubuntu Linux; I have seen very few issues regarding compatibility."
"Stable and easy to use solution."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"The problem with the license costs for Ubuntu Linux right now is due to currency exchange, as everything is based on US dollars."
"The product could be compatible with Microsoft."
"Could be even more light weight than it currently is."
"At times, it can be complex when we are trying to integrate or when we are trying to set up some features."
"When you talk of some of the flexibility, like you want to install from scratch, Windows is more user-friendly compared to Linux."
"I find the solution could be easier to use, more flexible, user-friendly, and have a better UI."
"The Linux for desktop marketing could be improved but that is not only for Canonical/Ubuntu an issue."
"It can have more security."
 

Pricing and Cost Advice

Information not available
"We are not using the licensed version of the solution, we are using the free version."
"It's an open-source solution that can be used free of charge."
"It is open source, so it is free. There is no licensing fee."
"I don't need to pay for the license."
"It is open-source. We don't have to pay for its license."
"Ubuntu Linux is free for personal use, including business use."
"I am using the free version of the solution."
"Ubuntu Linux is an open-source product."
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Top Industries

By visitors reading reviews
Comms Service Provider
24%
University
10%
Construction Company
9%
Manufacturing Company
7%
Comms Service Provider
12%
Financial Services Firm
9%
Manufacturing Company
9%
University
8%
 

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?
Ubuntu Linux is almost free, but it has some professional services that require payment if you choose to use them. For a low-cost application server, Ubuntu Linux is a good choice, or for an enterp...
What needs improvement with Ubuntu Linux?
I was thinking that Ubuntu Linux and Windows would work on the same machine. With Windows 11, they came together, so it is a good thing. On the GUI, when I use SSH or PuTTY or what is called a cons...
 

Also Known As

No data available
Ubuntu
 

Overview

 

Sample Customers

CISCO, mettle, Microsoft, Upguard, GMX
Samsung, eBay, AT&T, Walmart, Cisco, Time Warner Cable, Bloomberg, Best Buy, Dell, Intel, Microsoft, Ericsson, Orange, Wells Fargo
Find out what your peers are saying about Red Hat, Canonical, Rocky Linux and others in Operating Systems (OS) for Business. Updated: September 2026.
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