I'm always suspect of the word 'BOMBSHELL' but in this case, I'll allow.
From the Heritage Foundation Oversight Project.
FTA:
The Biden presidency might have been the greatest con job ever perpetrated on the American people. A shocking investigation by the Heritage Foundation's Oversight Project has revealed that virtually every document bearing Joe Biden's signature during his presidency was signed by an autopen — except for one.
What makes this revelation particularly damning is that the only document confirmed to have Biden's actual signature was his letter announcing his withdrawal from the 2024 presidential race. Let that sink in for a moment.
...
Missouri Attorney General Andrew Bailey is demanding that the Department of Justice investigate whether Biden's obvious cognitive decline allowed unelected bureaucrats to essentially run the government without presidential oversight. If this is true — and let's be honest, all signs point to yes — every executive order, every pardon, and every official action taken under Biden's name could be constitutionally void.
.
https://x.com/OversightPR/status/1897726502156091716?ref_src=twsrc%5Etfw
I thought Barry Soetoro set the pace for the use of autopen, and it was supposedly upheld. IIRC, Barry signed pieces of legislation into law while out of the country via autopen.