I can easily see the future of personal computing being a mobile device with peripherals that use its compute and cloud for anything serious. be that airpods, glasses, watches, or just hooking that device up to a larger screen.
theres not a great reason for an individual to own processing power in a desktop, laptop, phone, and glasses when most are idle while using the others.
Really, the compute on a phone has been good enough for at least a decade now once we got USB C. We're still largely doing on our phones and laptops the same things we were doing in 2005. I'm surprised it took this long
I'm happy this is becoming a real thing. I hope they'll also allow the phone's screen to be used like a trackpad. It wouldn't be ideal, but there's no reason the touchscreen can't be a fully featured input device.
I'm fully agreed with you on the wasted processing power-- I think we'll eventually head toward a model of having one computing device with a number of thin clients which are locally connected.
I might have misunderstood but do you mean as an input device attached to your desktop computer? Kdeconnect has made that available for quite some time out of the box. (Although it's been a long time since I used it and when I tested it just now apparently I've somehow managed to break the input processing half of the software on my desktop in the interim.)