Now I've got all sorts of things, most visible are Plex and Audiobookshelf. The most useful to me personally is Headscale for what at I assume are obvious reasons.
I'd like to use Matrix more but that requires some buy-in from friends.
I ostensibly use this as a means of continued education for myself, but really it's because I enjoy using/learning about open-source software and creating my own ecosystem outside of "big tech"
I've got it all set up in a way that really works for me, which is all that really matters in the end.
The xbone was a hard pivot into the Xbox being a "media center" rather than just a gaming machine. In 2013 we all realized that yes, a console could be used to watch movies or even stream Netflix... But it's primary purpose was as a gaming console and people were put off by the marketing.
They also had some game sharing controversies of their own. MS and Sony have been trying to kill physical games on their platforms for well over a decade now so we'll see where it goes.
There are some attempts to diagram it out online but it really just doesn't make sense imo