Would be great if you could set lead flows to appear/not appear on landing page variations. Because they share the same URL, you can't do this currently.
I hear you and think you make a good point.
Would you mind posting a feature request on the HubSpot Community Ideas Forum? Our product managers regularly review top voted/commented ideas and generally prioritize ideas which have the most engagement from and potential impact on users.
If you share a link in this thread, I'll be happy to upvote it.