Signature verification is a dangerous joke--something Republicans ginned up to cheat people out of their votes. Anybody who thinks real people are supposed to sit down and examine ballots one by one to compare the signatures of voters is insane: I can't think of a more absurd idea. It would take forevever and there would be a million bad decisions, as people don't sign their names the same way every time. And if a computer did it you'd have the same problem.
At the end of the day it's up to state election officials to attest to the validity of votes. If they are satisfied, then we all should be satisfied. Everyone has always been satisfied except for the hanging chad fiasco in Florida--and the corrupt Supreme Court decision that followed--that surely cheated Al Gore out of the presidency. You want a real stolen election? That was surely it. There should have been a full recount and there wasn't. Of course the punch-hole ballot was a stupid idea to begin with--and then to not count hanging chads because they weren't fully punched and dropped when it was obvious who the citizen was voting for was a freakin' disgrace--real cheating.
There are imperfections in our system, to be sure, starting with the fact that states use different voting procedures--but at the end of the days we've all accepted the outcomes until the vile, corrupt gangster came along and further poisoned itsy bitsy MAGA brains.