You do have to follow the naming scheme, though 95% of the time I don’t need to touch the names of tv show episodes, just stick them in the correct folders. The exceptions are mostly anime and shows I could only find on internet archive, as, for some reason, those often come with just the episode number in the name, not the full “s01e14” that basically everyone else uses.

I rename my movies but that takes maybe ten seconds per one I add, tops, and the result is easier to read when managing files later than leaving them as “www.torrenting.com The.Matix.ita.eng.1999[rarbg]” or whatever insane file names they usually come with.