https://pyrolistical.github.io/overwatch-dpi-tool/
Based on your settings you’ll have to move about 28cm to do a 360.
In my case it’s about 27 and I know I have a medium low sens.
This I believe is only doable if you do arm movement though. You can still use wrist movement for small movements, but to turn around to look on your sides or behind you you definitely will use your arm or at least a combination.
If you want to do wrist movement only you’ll need to do it with much higher sens and probably just give in to aim accuracy.
I’ve been playing WoW and other MMO’s for so long and me too I grew using very high sens cause it works best in MMO’s, but I managed to adapt back to using a lower sens to be honest. I suggest you try cause I think too high sens just doesn’t work well, the advantages don’t weigh up against the disadvantages.
Also I feel that muscle memory on arm movement is quite accurate as well.