I have content in mkv and mp4, SDR and HDR, 264 and 265. I stream from a Jellyfin container with an onboard Intel GPU passed through for transcoding as needed. The client is a 8 series NUC on gigabit using the Flatpak Jellyfin app on a Fedora 44 install. I've yet to encounter any issues with any of my library.
Anecdotes aren't data and all that.