probably not, take a good look at the photos and inspect carefully. ask for extra pictures if you think it'll be bad. gopro hero 7 for 200 isn't that bad to be honest. a new hero 8 black is 300 I believe. that's what I got mine for brand new though.
used gopro 100%, hero 7 is a good choice but if also a cheap gopro 8 would be good
https://www.ebay.co.uk/itm/313578172429?hash=item4902b7300d:g:jpMAAOSwgM5hh85A
https://www.ebay.co.uk/itm/275044610289?epid=3024160514&hash=item4009efb0f1%3Ag%3AbEQAAOSwvTRho6Cw&LH_BIN=1...