Most already had Android TV built into their TVs, but I gifted a couple of them $20 Walmart Android TVs. Even changed what the Paramount and Disney buttons open up for them. They all got their own logins so our ‘recently watched’ and ‘continue watching’ is separate
I’m in love with the customization in Android TV, I even have it controlling my lights so I can dim them all with a button on the remote
You can cast from the Jellyfin app too, but it’s not as nice.