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Flatcar Container Linux vs Ubuntu Linux comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 2025

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
33rd
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
3rd
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
150
Ranking in other categories
OpenStack (1st)
 

Mindshare comparison

As of January 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.5% compared to the previous year. The mindshare of Ubuntu Linux is 9.4%, down from 15.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Market Share Distribution
ProductMarket Share (%)
Ubuntu Linux9.4%
Flatcar Container Linux0.9%
Other89.7%
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…
Salim Ahmed - PeerSpot reviewer
System Administrator at mmcytech
Has supported secure application hosting and reliable server management
I find the GUI to be good in Ubuntu Linux, and I appreciate the open SSH. The fact that it is free since it is open and open-source is why I appreciate it and feel it is secured. We have multiple different kinds of support related to Ubuntu Linux, including official support and other options. I am currently using laptops, desktops, and servers, and Ubuntu Linux supports all these devices. If I need it for Raspberry Pi or something similar, I can download another Linux distribution. Ubuntu Linux is scalable, especially for servers. We prefer using Ubuntu Linux Servers rather than Windows. The biggest advantage of Ubuntu Linux for me is that it is open-source, secured, and scalable.

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. The version I am using is stable and allows us to make needed changes."
"The biggest advantage of Ubuntu Linux for me is that it is open-source, secured, and scalable."
"Doesn't require significant manual configuration."
"The solution is stable."
"The solution is scalable."
"Ubuntu Linux has good security features and a lot of software compatibility."
"The trifecta comprising the solution's most valuable features consists of its stability, security and performance."
"I would rate Ubuntu Linux a nine out of ten as a total rating."
"The setup cost is free."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"On the GUI, when I use SSH or PuTTY or what is called a console port to connect with the network devices or servers, it is somehow difficult compared with Windows."
"The config file can be changed in many ways, but with other solutions, there is only one way to configure the system."
"They aren't as user-friendly as Microsoft. The solution can use a better UI."
"It would be nice to see more compatibility with certain Microsoft solutions, such as OneDrive."
"There is a large open-sourced community that is helpful. I had a lot of problems when starting out and there was plenty of assistance throughout the community. Since everyone is helping for free the support could be better."
"The repository needs to be kept up to date all of the time."
"After only a week of using the solution, we haven't really found any limitations or missing features."
"I would recommend they improve the network security, because it can be very difficult. I mentioned that when you upgrade Ubuntu, the network cut is always deactivated, so you have to restart the service to reactivate the network. It is important to improve this ability."
 

Pricing and Cost Advice

Information not available
"I am not in a position to comment on the licensing, as we mostly make use of the free version."
"This solution is free."
"Ubuntu is a free product."
"We do not incur a licensing fee for the solution, as we make use of the free version."
"I use the free version, so I don't have any license fees."
"The solution is open source, so there is no licensing fee."
"There is not a license needed for the solution. You only have to pay for technical support."
"The solution does not come with a licensing fee."
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Comms Service Provider
13%
Computer Software Company
13%
University
10%
Computer Software Company
12%
Comms Service Provider
11%
University
10%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business84
Midsize Enterprise21
Large Enterprise53
 

Questions from the Community

Ask a question
Earn 20 points
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 do you like most about Ubuntu Linux?
It has a good support system for loading databases.
What is your experience regarding pricing and costs for Ubuntu Linux?
My experience with the pricing for Ubuntu Linux is that I always use the free version, so I never paid for any installations or support.
 

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, Rocky Linux, Canonical and others in Operating Systems (OS) for Business. Updated: December 2025.
880,315 professionals have used our research since 2012.