

Libraries were simple enough, sure, but have you delved into the full settings? Trying to figure out the correct settings for QuickSync hardware acceleration was a mission in and of itself and there’s very little guidance on what any of the options mean or do. I don’t have the container running right now or I’d provide examples, but In Plex it’s a single checkbox.
I’m sure Jellyfin will get there and it’s a cool project, but it’s fairly obvious that it’s written by hobbyists, for hobbyists. Meanwhile Plex excels at just working straight out of the box.
If you own a domain, which you do, you can get wildcard certs from Let’s Encrypt using a DNS challenge. Most (all?) popular reverse proxies can do this either natively or via an addon/module, you just need to use a supported DNS provider.