Magnetic mount, but I have it for a different reason I haven't seen mentioned yet. My daily driver is a company owned vehicle, and there's an app on my phone that tracks driving habits (hard braking, acceleration, phone manipulations, speed, etc.). Manually moving the phone counts as a manipulation, so if it's sliding around on the passenger seat or falls out of the cupholder, etc it'll trigger a manipulation which is a hit on my driving record/score. So I use the magnet mount so the phone stays "still" and I don't get dinged.
If I'm using GPS, I plug it into Carplay and use the nav screen map since it's bigger. I don't touch the phone or use it for anything while it's in the mount, the mount just keeps it still.