I haven’t seen this on a 13 pro yet but I have on the 12 pro. What you have circled is actually an IC for the antenna and it is soldered to the board, the flex runs down to the bottom of the board. I think the phone should still boot but I am not sure about the implications of cell functionality.
I think at the moment since this model is new you would need to get a donor board and de-solder the IC and transfer it to your board. It will require microsoldering and a lot of skill as I don’t think there will be any alignment marks to line it up when soldering.