Well to be honest everyone can "rogue" since older editions, just invest skill points in Perception,stealth,pickpocketing and mechanism, you are set.
Rogues have advantage of having several Skill Points in their progression summed that usually they have good Dex Score for most of those skills. But nothing prevents other classes to do so.
I think there are a lot of people who never played table top or any games based on 3rd edition, so the transition from 2nd edition BG 1/2 to 5th edition BG3 must seem quite dramatic.
