Software-wise, it seems that the relatively fast adoption of flatpaks and other containerized formats somewhat solves the typical dependency hell that was so common in Linux just a few years back (and to some extent still is an issue today depending on your distro and use case). The hardware support side is a little harder. That’s going to be up to vendors to play nice with the Kernel team and/or introduce reasonable userland software that doesn’t break the golden rule. Until Linux gets more market share the latter isn’t likely to happen. A nice side benefit of the emergence of immutable and/or atomic distros is that users can play around and try things with much lower risk of bricking their systems, so I’d also consider that a step closer in the “it just works” department.
Atomic OS’s (especially Fedora based) with Nvidia are going to be a bit of a pain. Did you follow all the instructions found Here ? I personally gave up on silverblue/kinoite after I tried Bazzite. Similar bases, but the Bazzite devs paid special attention to GPU and accessory drivers/implementations that are otherwise much more painful in Fedora Atomics. You can always do a clean rebase then re-run the steps above (only the OSTree section).