Pause/play/skip for music from the other room is nice, auto mute, phone notifications on desktop, etc... Even with my phone next to me, some features are still useful.
I've heard of moonlight, the only reason I went with Steam Link is that it was dead simple. Better image quality is definitely tempting, I'll give moonlight a try soon!
“you will be able send Signal/Matrix messages from your fediverse instance of choice”
While no details are clear, it'll definitely not be this. Matrix has it's own implementation which isn't compatible with signal (megolm or something like that), and I really don't think dansup will be making it matrix compatible. It'll probably be its own thing.
Liftoff is also very frequently updated. Any complaint I've had has been addressed 2-3 patches after posting about it. They work fast, and they do good work. Big +1 for liftoff.
Is he incorrect?