I rechromed every dash piece years ago.
What I did to remove these small plastic pieces is to carefully pry them off, using picks, razors and tiny flat edge screw drivers. They gave it up pretty easily without much of a fight and no damage.
When it came time to replace them, I glued them back on and they have been there for 23 years now. I don’t recall specifically the glue I use, but it was probably epoxy.