You should check out Telegram and Youtube, you have numerous videos and photos of destroyed Ukrainian armor, drone strikes on radars and artillery, while analysts count everything.

I used to in the first few months of the invasion, but I decided I'd only try to keep up with any significant developments (like if a city changes hands or something new happens, like a particularly brazen drone strike) for the sake of my own mental health.

The brigades were already at most 50% of capacity before the offensive,

Which YouTube sources were saying this?