“Learn” linux not even a requirement, a lot of distros work fine as a normal-person-os out of the box (Ubuntu & any of its spin-offs, Manjaro, Deepin, etc), with maybe some minimal youtube/forum troubleshooting, probably comparable with the amount you would do on windows.

Im starting to think that this whole “security updates support” is just another layer of planned obsolescence. Perfectly running phones with hardware that works just fine and could surely easily support any future security update, becoming “obsolete” simply because the manufacturer does not release updates these “security updates” anymore.