All clocks are "broken," then. They all serve their own interests, that means we have to identify what they are to figure out how to read them. The fact that Ukrainians are struggling, many are fighting back against conscription vans, etc. is both convenient to Russia and actually true. That doesn't mean everything RT says is correct 100%, but it does mean that not everything pro-Russia or anti-Ukraine from Russian media is wrong.
For example, I know BBC frequently outright lies and fabricates information about China. This is well-documented, they even add gray or yellow filters to video to make it seem scarier. That doesn't mean they are never correct.