Gearbox boss Randy Pitchford has talked about how the team approached realism for Borderlands 4, and the answer seems to be to not approach it at all.
We're still a bit away from Borderlands 4 arriving (even longer if you're waiting on the Switch 2 version), but Gearbox has announced that the game has gone gold around a month and a half early. Now that it's ready to go, 2K and Gearbox have been ramping up the marketing machine with new character trailers, and from the new gameplay it's been pretty easy to notice that the movement looks way better this time around with the likes of double jumping introduced into players' kits.
