Not that i give the place any particular authority for its opinions, but you can actually still read a lot of the old Rec.Sport.Soccer threads from the mid-late '90s. it gives an ok impression of what online discussion of Ronaldo from a slightly older demogaphic was like at the time (those not quite as likely to be tainted by the dreaded nostalgia for 90s players), just before individual forums started to dominate. For younger people who might be unfamiliar, it was the biggest football usenet group and throughout the 90s was the main place football historians/fans could discuss the sport online. Essentially an early-internet r/soccer. It was also very influential for early internet efforts at compiling football stat/record archives. The unmoderated nature meant you could get very knowledgeable people and absolute lunatics/trolls frequently in the same threads.
Discussion tone back then actually wasn't that different from the last 10-15 years forums or socialmedia regarding top players/leagues. I've had a look through 90s Ronaldo topics and some others from that time about a year ago and while it can be hard to follow ( a lot of deleted/not archived posts), he definitely had his share of criticism (or just those being more cautious), alongside the people thinking he was definitely going to be an all-time great by the next 3-4 years. During his time at Barca, there had seemed to be a good amount of questioning if he would cut it in the superior Engli...i mean Italian league.There was also criticism of his style being too repetitively direct and dependent on those athletic runs to deal with the mythical italian defending, or people who thought Romario/Batistuta/Del Piero were just as good going into the 98 World Cup etc..
Basically all the same sort of shit that elite forwards from the past generation get as they established themselves, but with more speculation of all-time great potential.
One thing that surprised me was how much criticism he was getting during the 98 World Cup topics for the quality of his overall contribution in open-play. To be fair, a lot of that was probably before his two assists against Denmark. The immediate post-world cup discussion definitely had a lot of "didn't live up to his potential/the hype" / "definitely not a great yet" sort of opinions, and his performance in the final was shredded. It's obvious from them that it took some time to put the final into context, and for people to sift through the various, somewhat conflicting stories that were coming out of what happened to him.
Personally i thought he was an all-time great talent and the idea he wouldn't be loved or as hyped now to be very unlikely, however i do think some people are being harsh in the comparisons to Cristiano. He was definitely more naturally talented as an overall technician, but was still very much a heavily goalscoring focused, often individualistic 9. Comparing the 2008 to about 2014 or 15 Cristiano with him, and i don't think the idea one was far more of a "moments" player and pure goalscorer really holds up. Ronaldo pre-injury had plenty of games where the attempts at solo dribbling goals past a few defenders didn't work, and less, but still quite regular, where he didn't interact too well with his teammates to compensate...yet was usually still able to be effective and get a goal or two through a great moment of finishing and positioning/movement. Similar sort of impact as Cristiano at the end of the day, though Ronaldo (before injury) notably superior dribbling and at least equal strength/movement meant he was even better at creating space for others and harassing most of the defence over the course of the full game.
As supporting/creative forwards both were perfectly capable of very good moments until Cristiano started to seriously neglect that side of his game, but neither were consistent as threats with through balls, or as players who would regularly orchestrate the final-third with their passing.90% of the time the dribbles were done with the aim of taking a shot for themselves. I really don't think Ronaldo is much closer to someone like Messi or Pele in balancing out great creative/finishing threat than Cristiano is.