>A friend of mine who is very seriously into bodybuilding gets some crazy useful (according to him) exercise technique/regimen videos that are very far from the mainstream "exercise routine/fitness advice" videos.

yeah, getting "non-mainstream" fitness advice from freaking short form videos is just about the dumbest thing I've heard this month

tell your friend to read a book sometimes, there's a reason why they exist and it's not to sell more ads unlike some other media ...