Yep I totally agree with Mug here...
Stack sizes of the other players is very important here you need a bigger screenshot so we can see them.
Five handed 77 is a strong hand so no way I'm folding, as there are no antes open shoving isn't profitable enough so I'd min raise or 2.5x here depending on how tight the BB is..
The standard play is to raise/fold if 3bet depending on the player and his stack size.
If a short stack 3bets you putting in more than a third of his chips then they are committed so fold.
If you get 3bet small by someone who's deeper and in position but you could cripple them, then a 4 bet jam is an option, you have FE and you are slight fav flipping with the higher card combos and you shouldn't call a 3bet with this hand oop with this stack size with a hand that doesn't flop well like 77.
If called on dry flops as you are utg you have a stronger perceived range and should get a ton of folds with a standard continuation bet.