The only usage that would make any sense, and what I have always thought must have been the original meaning, is people who literally sit on their phone and send in job applications and do little to no work until the boss notices.

This got turned into "doing only exactly what was asked" and now we're finally at "Really great work but could do more!!!!"

Quiet quitting never had a worthwhile meaning to begin with. The way they defined that was literally just what having a job is

All these words were invented by managers anyway so it doesn’t matter

I think it's not asking for extra work, but the thing is if they did that their performance would likely drop. I genuinely don't get how managers seem incapable of understanding that the quality of the work turned in is directly related to timelines and workload.