Ronaldo's Inter the season before he came were in 3rd place and that's mostly because they overperformed and other teams had some injury issues. In reality they were more like the 7th best team in Serie A at best, in 1995/96 they were in 7th place and they hadn't won scudetto in 7 years. Ronaldo was 21 and almost won it for them in his first season if not for the ref Ceccarini.
Ronaldinho was playing in baguette league, he should have atleast won one of the cups
Even at PSG he jobbed a cup final which he should have won(btw Mexes was playing for Auxerre, fucking Mexes won a cup vs Ronaldinho)
en.wikipedia.org
This is why I can't agree with you when you say Ronaldinho at peak was unstoppable
His disappearance in finals is a mark against him, much like his horrific penalty-taking skills when he was at Milan