I do kind of wonder if Linux’ real problem is just that the Venn diagram of things people care about is all over the place and Linux just fails at the edge cases.
I’ve used Linux for a bunch of projects, and use it every day in a VM for work, but I wouldn’t dare to use it for my daily driver and I don’t think my niche needs are ever likely to be something that gets picked up. Shame for me, but the nature of open-source.
macOS and Windows have a lot of features to lock user directories away from rogue software, and Macs have notarization and certificate revocation (which I believe is coming to Windows too unless I’m mistaken).
Notarization/revocation isn’t really philosophically FOSS compatible so I don’t ever see things like this making it’s way to Linux either.
It is a real bummer that the major hardware vendors choose not to open up their devices when they reach end of life. Phones and old hardware are frequently viable for double their enforced service-lives or longer.