Just a data point: OP is looking for a desktop solution, and Rust Desk may be fine for that; I was pretty impressed with it. However, I caution about using it to share out on Android. I traced down random crashes and reboots into safe mode to Rust Desk running on a Pixel. It took me a while to figure out which app was causing it; it seemed to have no correlation to use, time, or anything else I could discern. They only went away after I completely uninstalled Rust Desk (which is why it took so long; I couldn’t correlate it to running Rust Desk, so I didn’t suspect it).
The reboots into safe mode turned me off to it on mobile - I had no issues at all running the desktop client on Linux. Android aside, it’s a really nice bit of work, and I fancy even nicer than VNC, which for me is saying a lot.
That said, on a fast network, I still prefer a good old X client over ssh to VNC, if for no other reason than easier per-app windows - but I like the L&F and performance of X on a fast pipe.