Biden for President fundraising ledger shows Showing 4,231 to 4,260 of 11,342,000 entries ALL on November 3, 2020. Every single page shows Act Blue every second entry.
https://www.fec.gov/data/candidate/P80000722/
There were a slew of contribution refunds issued by the Biden campaign on 11/23/2020,see pics
Interesting maps showing the geographical majority of funds raised for each Presidential candidate.
https://www.fec.gov/data/candidates/president/presidential-map/