I’ve been on Jellyfin for years, and I was using Emby before they forked it to create Jellyfin. Prior to Emby I was on Plex.
It hasn’t always been smooth sailing but I’ve been using it in a docker container for about a year now and it’s been great. The family love it, which is the main thing.
According to who? The UK, and I live in Wales btw, is part of the European continent. The myopic, bigoted people of the UK voted to leave the EU which is a political institution not to be confused with Europe as a continent.