Sorry but you can’t compare Manchester T2 with Munich.
Why?
Munich has 2 terminals. Terminal 1 at Munich is horrific. No windows landside. Long and narrow. Awful security queues. Crowded. No redeeming features. T1 at Munich is everyone but Lufthansa. T2 Munich is better. But not amazing.
But the short story is your experience of MUC is very dependant on If you’re using T1 or T2 there.
T2 at Manchester is far better than T1. But things aren’t back to normal yet. I am in no way defending Manchester airport, but you have to compare terminal to terminal. I’ve had some of my worst airport experiences at Munich when flying any non Lufthansa airline.