But none of this has anything to do with the original argument where you said it was ridiculous to think haaland would have matched R9's success had he played in the same teams. Not about whether he's a better player or would have contributed more, but would he have managed the same success, and at club level the likely answer is yes, and had he been playing for Brazil in 2002 instead of Ronaldo I'd still have them as favourites
If playing for the same teams, then it's still not guaranteed the same success.
Ronaldo ran that PSV, Barcelona, Inter team than just scoring/attacking. Great goal scorer alone still couldn't get you as far because unlike today with lack of elite scorer, other teams in that era had great goal scorers to compete too. It's more difficult to get all the pieces together back in the days. Ronaldo is a transformative player who elevate the team all round beside goal scoring. He brought with him elite ball carrying, very good level of play making beside the forward required work.
PSV, Barcelona, Inter could have still lost those few trophies and being in worse position, with different type of forward in his place.
World Cup 2002 with Brazil maybe because Ronaldo freshly came back as more of poacher than his healthier days. However, nothing is certain even then. Ronaldo had his clutch moments. Something that can't be certain. Many great scorers, great players failed to deliver those clutch moment for their teams. It may take a bit more of chemistry with the team. Ronaldo had that chemistry. Haaland, or someone else however good they are may not have. Benzema didn't have as good chemistry with his France team for example when he's easily better player than Giroud. Benzema is no less selfless on the pitch than Giroud, too. On paper, Benzema would improve that France team in Giroud place, but reality had shown a different story.
Going back to Ronaldo era, France team revolved around Zidane. Henry did have great impact, but he's not as influential in France NT. Whenever Zidane not in form/retired, France had trouble despite their also talented packed squad, and Henry was still at his peak. Certain settings can't be easily replicated.