Between the risk of damaging the lightning port and hurting the battery with magsafe heat, I chose the first.
Haven’t found problem of any Apple ports for a decade. But heat really concerns me, even I don’t use fast wired charging on daily basis. So I just use wired 5W. Not that terribly slow on 12 mini.
So the only thing that keeping me off from using magsafe is heat. I don’t mind slow charging, and I don’t usually charge while using my phone, so I most probably can use it without magsafe compatible cases.