I use mine off and on for singleplayer titles, mostly when I do not feel like sitting at my desk. One big thing that keeps me from using it more is syncing saves for games outside of steam (Minecraft Java, Games in the heroic launcher/Bottles) because I would need to either setup syncthing or remember to transfer saves via usb. However my experience using the steam deck has been very positive the past few months since I have received it.
Exactly, not only did I block LML over this but I vote for defederating with them from my home instance.