I used to use Plex as well but similar to your remarks, they started doing a lot more updates that added a “corporate” feel to it such as adding their own movies/tv. Nothing inherently wrong with that but in my opinion, when a platform has the option to add features such as that, that costs money. And they’re gonna want to get that money back somehow. Yeah they offer subscriptions but to me this all was a redflag that I could see them taking further in the future. Where as Jellyfin is completely free at the cost of a little extra work to setup.