Since everyone hates Plex here apparently here's a positive feedback. I bought the lifetime pass for $90 a few years ago and didn't even use it that much at first. I just launched Plex Server from my MacBook from time to time to watch movies on my TV that were not available on Netflix, Prime Video or Disney+ (I subscribed to all three), because it was apparently the easiest way to watch a movie on TV from a laptop without using an HDMI cable.
With time passing and the pricing of 3 platforms becoming more and more ridiculous for less and less convenience, I completely migrated to Plex 2 years ago. It's been working flawlessly so far. The UX is not perfect but good enough, it syncs with my phone and iPad, I can download episodes in advance when traveling, I can share access with friends easily... Probably the best $90 I've ever spent for a lifetime pass.
Maybe Jellyfin or Emby would work just as well, I honestly don't know. But Plex is fine.