Too many games that call themselves "roguelike" these days are nothing at all like Rogue, though. I'm not exactly sure what the term really means anymore.
Right?! Cataclysm DDA is the first thing I think of when I think roguelike. And then someone says Slay the Spire is roguelike because, I dunno, you progress in ability. I suppose I'm just too old.
Yes, it doesn't have much to do with the rogue anymore (except a few games). These days, the meaning is along the lines of "the game consists of many repeating runs, each one being reasonably short like 0.5-1h, failure is normal, you will progress in many different ways both within each run and globally even if you fail, there will be a predominant effect of randomness, there may be some exploration effect".