Yes. With "jj undo", I'm not scared to do anything. The brief time I had to go back to using vanilla "git", I didn't enjoy being extra cautious.

Using a version control tool shouldn't require much self discipline.

yeah, i regularly try absorb then undo when it moves it to a commit from 7 years ago, then manually squash where appropriate

Not by default: https://github.com/tummychow/git-absorb