You clearly haven’t tried 3.5e, IMHO best edition. Class for every occasion. 362 to be exact, however I might be missing some (ex. savage species monster class progression). And you can obviously mix and match classes as long as you meet the requirements.
Can you point me to a list of pf1e classes, since you claim it has more classes… at least d20pfsrd.com or nethys doesn’t list them all(?). I just assumed you were counting archetypes.
I found 44 base classes & 119 prestige classes in Pathfinder.
3.5 has 84 base classes & rest of 362 are prestige (also, tbh, epic classes can be argued that they don’t count, which is fair).