The Samsung/Ubuntu project is dead, but Dex seems to be going okay, they just rolled it out to the Fold.

https://www.notebookcheck.net/Samsung-finally-adds-DeX-suppo...

Android 10 can apparently be coaxed into something like a desktop experience if you have the right phone. It's at least possible Android 11 will have a proper desktop mode built in, but I suppose I'm not holding my breath.

https://www.xda-developers.com/make-android-10-desktop-mode-...