Droning got a big nerf, there's no free executes from AI squadmates, and there's no more rebel abilities so you can't just instant scan an entire fort. Enemy drones are almost impossible to deal with without setting off alarms, and a chore to fight once they activate. Unlike Wildlands which had human-manned turrets that you could snipe, Breakpoint's turrets are all drone turrets--so you can't take them out without multiple hits (and also setting off alarms).
So yeah, you can play it stealth, but it's a lot harder, and not nearly as fun, and without nearly as many options despite the dedicated Panther class giving stealth buffs (that are pointless because the more surefire way to stealth in this game is just to snipe with a silencer, which will put enemies into alert mode, but they won't be able to detect you because the AI is still dumb as bricks.
Another really annoying thing that wasn't fixed from Wildlands is that when you attempt to do grab someone, as soon as you start holding the button, it will alert the enemy you're attempting to grab--even if you're behind them and they're facing away from you. It's really stupid and means there's no reason to ever grab someone instead of just shooting them, because you can interrogate them after they're "dead" anyway.
