When will Rapidweaver 7 stop publishing every file when I change one tiny thing?

Which beta did you run? And, if it wasn’t the most recent (link below) give that a shot (because reports were that the issue was fixed)

If the issue still exists in that beta please use the Give Feedback green button at the top to report it so we can fix that.

Also, if you’re using Pluskit or another addon that when making a change that does affect every page then of course it might need to republish them all.