That’s cool, but I’d still prefer not to be wrangling a dozen or so engines with bangs and editing config files when I could do it all through the UI in a more intuitive way. While I don’t mind initial setup, I have very little appetite for endless tweaking of config files. So while I’ll keep an eye on SearXNG and occasionally pull it onto my server, Kagi can continue being my daily driver for now.
I’m in a similar boat, switched from Android TV clients to a couple little beelink N100 boxes (which are great). I use Kodi as my Jellyfin client which works great especially with a remote/from the couch, and a cursory search would imply that Kodi has plugins for Prime Video and Disney Plus, but I don’t use those, so I have no first-hand experience.
The big one that annoys me right now is the lack of a TV interface for Spotify outside of the walled gardens of Android, Apple, and Roku. The desktop app does not play well with anything but mouse and keyboard.
Another thing to note is that Jellyfin Media Player plays really nicely on a TV/Remote control setup.