A former U.S. soldier fighting for Ukraine was discussing the reality of drone warfare. If you are at or anywhere near the front, you have to assume that you are under constant 24/7 surveillance by various drones and satellites. Whenever you move (even just a single person), the Russians are almost certainly watching you. And then it's really just a question of whether they decide you are worth attacking via artillery, mortars and/or FPV attack drones. The longer you linger on camera, the more likely it is that the Russians are going to throw something at you, just for the fuck of it. As an example, if you leave your covered and concealed trench to take a dump nearby, you have no more than about 10 minutes before there could possibly be incoming on your position.