Yeah, I am comfortable with most DE’s, I’m flexible but I prefer KDE+Wayland.
Dolphin is poorly threaded though. For example: If I drag a large file from a network share to the desktop I can not drag another one to the desktop until the first copy have completed. If I connect my VPN or just an away-from-home wifi, Dolphin freezes, probably because it can’t find the local SMB connections in the “Remotes” group.
I’m also watching COSMIC, it has a very well thought out architecture though I suspect the first version will be too simplistic in terms of features - for example vs Dolphin.
I’ve been using OSMC on two of my TVs for years. First on RPis, then on Vero boxes. They connect via SMB to my NAS for content. OSMC/Kodi can play almost anything without needing wasteful transcoding. I use them daily.
For Netflix/Prime it’s either built in on the TV or running on a Firestick. Interestingly one can sideload Kodi on a Firestick, so an OSMC device isn’t necessary in that scenario.