The Ukrainians seem to disagree, here’s an article from over a year ago of their first fully robotic combined arms assault, complete with minelaying aerial drones, groundbased suicide bots and those things. The article also mentions one of these units being used in September last year for clearing of a trench. Weak points only seem to be the optical sensors, but in combination with air surveillance drones you might still be able to get use out of one when the sensors are damaged. But it’s really about taking the risk away from their soldiers, and you can do that very well with these things.

eta: the development is real quick btw. first live test in september to combined arms assault in december is pretty bonkers