I hadn't thought of that but is great advice. If the screw head is stripped this is pretty much your only option short of sending the whole thing to DJI.
It is a known issue with
Mini 3's that the screws are nearly impossible to remove, at least with the provided "toy" screw driver. I've posted in much earlier posts about the issue, so here again is what I will say about that.
1) Buy a GOOD screw driver like this one...
Screwdriver from Amazon
2) Before anything else, preemptively take that screwdriver and unscrew each screw enough so that they break the bond with the motor to make them easier to change later on especially if you have to change a prop in the field. Of course re-tighten (common sense).
3) Pack the new screwdriver in the case with your drone and spare props. Better to have it and not need it than need it and not have it.