They surely have their own technical problems, but AppImages that maintain themselves are particularly friendly as well.
It's about as similar to the 'download untrusted software, double click to run it, and hope/pray/assume it handles updates itself' workflow found elsewhere as you can get.
I have several non-technical family members using Linux. They don't struggle getting software at all, regardless of it not being just-like-others.
There's software portals just like the stores on other platforms and they generally bridge the gap between packages/containers well.
Nobody installs from archives like Slackware anymore, or they shouldn't.