This works for me on Pinephone Mobian Phosh:
- Press and hold, the context menu pops up.
- Don’t let go!
- While holding the press that brought up the context menu, use a finger on your other hand to tap the desired selection.
It’s easier to do than it sounds. Of course, it would be nice if the context menu just remained after you lift your finger… and I could swear that it worked that way in early versions of Phosh.