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Flatcar Container Linux vs Ubuntu Linux comparison

 

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
34th
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 February 2026, in the Operating Systems (OS) for Business category, the mindshare of Flatcar Container Linux is 0.9%, up from 0.4% compared to the previous year. The mindshare of Ubuntu Linux is 9.0%, down from 15.1% 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 Linux9.0%
Flatcar Container Linux0.9%
Other90.1%
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."
"It has a nice user interface and provides frequent updates."
"Linux-based operating system with good stability, good patching, and a straightforward setup."
"Ubuntu has a good interface, it is easier to use than other distribution such as CentOS or Red Hat. It's suitable for beginners who want to start learning Linux. It has a simple interface and it's easy to use."
"The tools we are using for this project are compatible with this solution."
"The solution is stable."
"The product is easy to use."
"The biggest advantage of Ubuntu Linux for me is that it is open-source, secured, and scalable."
"The setup is fairly easy."
 

Cons

"The development teams could sharpen their skills. They should offer applications on the net."
"It could be better for working with software at a high resolution."
"The encryption of the partition regarding software systems could be improved."
"The performance of this product could still be improved, as it's always good to improve on the performance of any product, no matter how satisfied you are with it."
"The user interface could be improved."
"The stability could be improved."
"The learning curve is quite high for non-technical users. Therefore, it's not a suitable solution for a general office environment."
"There were stability issues at specific times."
"While Linux platforms are generally difficult to manage due to shell applications and lots of text files, automation handles these challenges and allows monitoring of the deployment process."
 

Pricing and Cost Advice

Information not available
"Ubuntu Linux is free."
"It is open-source. We don't have to pay for its license."
"I am using the free version. There is no subscription."
"The solution is open source and we do not need to pay for a license."
"Ubuntu Linux is free to use."
"Ubuntu is an open-source Linux operating system that can be used free of charge."
"Ubuntu is a free product."
"This solution is free."
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Top Industries

By visitors reading reviews
Manufacturing Company
16%
Comms Service Provider
13%
University
13%
Computer Software Company
11%
Comms Service Provider
11%
University
10%
Computer Software Company
10%
Manufacturing Company
8%
 

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: January 2026.
881,707 professionals have used our research since 2012.