We all understand the fact that Rodri is an important player for Manchester City and a special tool in PEP guardiola's game plan. His absence would definitely be felt by any coach and in any team but it is not to the extent that Pep Guardiola is exaggerating it. We all know PEP and his mind game. He is definitely telling his next opponent to prepare less because his hit man is absent. Listen to Pep Guardiola at your own peril. If a player like KDB could be absent and nothing happened to Manchester city and also a player like Haaland was absent and they still did fine, I believe they will definitely cope even without Rodri.
It will certainly be tough for Pep and Man City as a whole to play without Rodri for this season, he will only be able to come back next season. But everything must run smoothly again even without him. There are many things that must continue to be fought for and although they certainly cannot replace it 100% as what Rodri did, they will always try to prepare him much better.
Source: Pep says about Rodri