Man just when I thought I got the hang of NixOS and setup everything already thanks to the new wiki. I dont think this is worth the trouble for me right now, but maybe in the future.
I used to have the Razr+ and downgraded to the normal Razr for this reason. Didnt use the front screen as much as I thought I would anyway, and it is very fragile. If you watch a teardown the back of the screen has space for it to break easier.
When google eventually makes the Pixel Flip (hopefully) thats when you will see better support for the extra screen because as of right now that entirely depends on closed source manufacture dependent software from motorola and samsung.