Rodri scored the winner in June as City beat Inter 1-0 to win the Champions League for the first time in their history.
That victory in Istanbul secured a treble of the Premier League, FA Cup and Champions League, making City only the second team – after the Manchester United side of the 1998-99 season – to achieve that feat.
City have now won five Premier League titles under Guardiola, having been champions for the last three campaigns, while they have won the FA Cup twice and the EFL Cup on four occasions.
Yet the former Barcelona and Bayern Munich coach remains hungry for more, so says Rodri.
When asked if Guardiola was the 'GOAT' manager, Rodri said: "I don't know. Of course, that's a question you have to ask people, what do you think about that?
"What we know is, he's been one of the greatest, for sure, and he's shown [that] everywhere he's been. And he has the hunger to go again.
"That's what can I say about him. He wants to win more things in the next year.
"So it's very, very good for us because this hunger is important for us to win again."
Indeed, City expect to reach a similar level of success next term, which for them starts on August 6, when they take on Arsenal in the Community Shield at Wembley Stadium.
"To repeat it," Rodri said when asked what City's aims were for the coming season.
"When you start a season, we always want to win everything. It was one of the most iconic successes of the club in its history. We are very, very proud of what we did.
"But we know that a new season is coming with new goals. We expect to do it again, even though we know it's going to be very, very difficult.
"We start from the pre-season, from the first game to make the team go again and to reach the best level."
Arsenal led the way for long swathes of last season, but Guardiola's juggernaut picked up pace in the run-in and eventually finished five points clear of the Gunners.
"The last part of the season is when you fight for all the titles so that is when you have to show the best football you've got inside and it's something we know from the past," explained Rodri.
"We have the experience and know how to win the trophies in the last part and we know that you have to be the best of yourself. So that's the key.
"Arrive to this moment with options to fight and then give the best and to step forward and I think it's something that the team has understood.
"It's one of the things that identifies the mentality of the team all these years."
Erling Haaland's incredible form was crucial to City's success. The Norway striker netted a Premier League-record 36 goals, and added a further 16 across other competitions, including 12 in the Champions League.
Indeed, one of the only single-season records left for Haaland to break in English football is Dixie Dean's incredible haul of 63 goals, which has stood since the 1927-28 campaign.
"I want [him] to [break more records], of course," Rodri said of the 23-year-old.
"I hope he can break the record every year, even though I know what he did last season was unbelievable.
"He's become such an important player for us and he's growing a lot. I hope that he can be even better."