What we're witnessing here with City runs deeper than just Rodri, but yes, he is by far their most important player and guarantees them an extra few points a season if he's injury-free.
With Arsenal I'm just disappointed that you haven't managed to win some of these games vs mid table teams after a couple of injuries. Whereas Liverpool are looking like the ones who've had the same manager in the dugout in the last 5 years and have spent hundreds of millions to give him the squad he needs to win the PL, when in fact that's not been the case for Slot, unlike Arteta.