[secabeen]

Looks like it depends on the state: https://www.rcfp.org/open-government-sections/i-election-rec...

Most common is allowing the inspection of the list of absentee requestors, like in North Carolina: The chief election judge of each precinct is required to post one copy of the precinct absentee ballot list “in a conspicuous location in the voting place.”

That said, there are other states that do not allow this, so it's less widespread than I originally thought, and when it is allowed, it's usually either just the absentee requestors, or the list is made available after the election, not during. Sorry.