Long time...
I can't say user personally as I locked myself out for the longest time, but I'm one of the originals who supported playon. (I didn't know there was a mobile version!)
SINCE it's been forever, can we still download to the desktop?
Yes, the desktop version is still available. I'm recording something with it at this very moment. You can download it here.
(I'm not an employee, just a community member.)
Unfortunately, it appears the "desktop" version is being discontinued for a "home" version that now requires a subscription. Since it is no longer receiving regular updates it doesn't record reliably anymore so no matter if you stay on Windows 10 or upgrade to Windows 11.