- Maybe that is the reason, Fedora probably ships bleeding edge stuff that is not well tested, you get the latest features but a the same time you get the lates

- Maybe that is the reason, Fedora probably ships bleeding edge stuff that is not well tested, you get the latest features but a the same time you get the latest bugs. - There are also configuration differences, ubuntu can blacklist some hardware for certain features. - Ubuntu also gets bug reports from users and customers, the developers will apply the fix in Ubuntu but it might take time until the upstream project applies the fix, or even if upstream applies the fix it will only appear in the other distros in the new release unless the distro has the energy to backport non security stuff.