Ballot harvesting
Ballot harvesting, also called vote harvesting, is the collecting and submitting of absentee or mail-in voter ballots by volunteers or workers. It occurs in some areas of the U.S. where voting by mail is common, but is illegal in some other states. Arizona banned the practice except for family members and caregivers.
Look it up.
https://duckduckgo.com/?t=ffnt&q=ballot+harvesting&ia=news
Ballot harvesting I agree is a non-starter, but that’s not really vote by mail if people go around and gather them