I too am using Linux, but finding an "automatic" linux is difficult since most distros are about performance. It's like trying to find an Italian Sports Car with an automatic.
And for the general user, they don't install their OS. It's preinstalled on a Laptop, or an all-in-one, think-dell office PC that their company provides them. Sign in like you do with everything today and you are good to go. Even Macs do this.
Linux has improved, but the desktop os's need to be more stable (in 1 year I broke 2 manjaro installs and my BTFS file system died in my Fedora install), packages need to be more up to date, and there needs to be gui's for any setting that a user needs to access like restarting a systemd process. A general user will not touch a terminal. Let alone download a git repo, just to update the latest build of Mangohud since the Ubuntu version is so out of date that the GOverlay GUI Utility that's on Ubuntu doesn't work with it.