Every version of Doctor Octopus is still Doctor Octopus
Marvel, and especially Spider-Man have a history of different versions themselves, even before Spider-Verse.
I think the tags for characters with alternate dimensions versions should share that tag with the 'main' version (in the case of Marvel, that's Earth-616)
The only exception I can think of, where we have where the multiverse counterpart is tagged differently is miles-morales, which only has one question. It's not clear if we want to keep that tag, but I'm not opposed to it in principle. Miles Morales is a much more written about character though, and probably deserves his own tag, separate from spider-man.
In short, until there's a significant need we should keep just the one tag for all Doc Ocks.