Ogee, the people having problem with this are the people who believes that only 1.8 million mail in ballots were requested in Pennsylvania, and that info is TOTALLY false. You can easily check that more than 3 million people applied to vote by mail through multiple news sources, and 2,616,012 were returned by election day at 8.00 pm, and 13,171 arrived after that, making a total of 2,629,183 million mail ballots returned (85.1% return rate).
Here are the official results:
Biden:
Election Day votes: 1,409,341
Mail votes: 1.995 691
Provisional : 53,168
Total votes: 3,459,923
Trump:
Election Day votes : 2,731,230
Mail votes: 595,538
Provisional : 50.874
Total votes: 3,378,263
Jo Jorgensen:
Election Day votes: 53,318
Mail votes: 24,783
Provisional : 1,277
Total votes: 79,397
These vote totals do not include any votes from mail ballots received between 8 p.m. on election day and 5 p.m. the following Friday.
https://www.electionreturns.pa.gov/
Please notice the results on election day from each candidate, Trump was winning by a lot, then the mail in ballots started being counted after midnight. The state law approved by the Republicans demanded that mail in ballots should only be counted after election day.
Why such a big difference in votes by mail between Democrats and Republicans? We all watch Trump saying multiple times to their supporters for them to vote in person, NOT by mail, and they obeyed.
Simple as that