I used to be involved with 'emby' back in the late 2000's when it started off as a plugin called video browser for Vista Media Centre... It later became Media Browser or 'MB' and later 'emby'
I left many years ago after butting heads with some others over the stupidity of certain design and direction choices.... in spite of being shouted down, screamed at and called all sorts of unpleasant things. Every single suggestion I made to streamline the UI and make the interface work better... was quietly implemented.
But I'd had enough of people who could program but had little idea about decent UI design... I like to think I influenced them enough to push it in the right direction... But there still seems to be an element that is stuck in the 'if it works on a touchscreen it's good enough for everything' mentality.
Even given my gripes with some of the idiots running the show over there at emby... I'd still choose it over anything else, because it's not harvesting your data, it's not sharing that data insidiously with everyone else and this is not the first time plex has introduced some nasty little tracking 'feature' into their software.
I've also got a lifetime sub because of that involvement and years of testing and developing it.
So my suggestion is ditch plex, give emby a try... heck, even give jellyfin a try (it's a fork of emby after all), it's lacking a lot of the features..
I have tried Plex... I switched to it and ran it alongside emby for about 6 months after I cut ties... there were many things to like about it back then. But... that was also when they decided to introduce their first attempt at tracking what users were watching and storing on their media servers... so I dropped it there and then.