>There's also the matter of the user experience, the fact that a lot of people have a large catalog of games on the PS platform.

Playnite is no match at all for the PS5 interface, which also handles streaming apps, which Playnite does not from what I can tell. I use both and know very well. The last place a user wants to deal with buggy behavior (bug right now in Playnite where I won't be able to use controller to move to the top bar in Playnite) or a manual touch to get things going the right way (Windows multi-display behavior is insanely bad, you need a Playnite plugin to fix it so things always launch on the TV and not the monitor, but you have to assign this for each new game) is entertainment center UX.