That's the most interesting possibility, I think. Probably not just "become us", though, because there's evidence for eukaryotic life, well before then. But it's only fuzzy structural and geochemical evidence. So they and/or their microbes could have merged.
However, the Earth wasn't so hospitable, ~1000 Ma BP. There wasn't much free oxygen then. Not until 600-800 Ma BP, I gather. So if they were oxygen breathers, they would have been living in habitats. But maybe they made the move ~600 Ma BP. That would have been ~endgame on Venus.
I don't see how any of this is testable, however. Some have argued that Octopodidae aren't originally from Earth. But it's iffy.[0] Still, who knows? Maybe they did come from Venus ;)
However, the Earth wasn't so hospitable, ~1000 Ma BP. There wasn't much free oxygen then. Not until 600-800 Ma BP, I gather. So if they were oxygen breathers, they would have been living in habitats. But maybe they made the move ~600 Ma BP. That would have been ~endgame on Venus.
I don't see how any of this is testable, however. Some have argued that Octopodidae aren't originally from Earth. But it's iffy.[0] Still, who knows? Maybe they did come from Venus ;)
0) https://www.snopes.com/fact-check/octopus-dna-origins/