Correct. He listed 14 people, and then:
grant a full, complete and unconditional pardon to all other individuals convicted of offenses related to events that occurred at or near the United States Capitol on January 6, 2021;
Yes, the president has broad and basically unchallengeable pardon powers, and could do exactly that. The check against it is supposed to be Congress being willing to impeach and remove.
While you're right, I'm not even that pessimistic about community notes. The big issue I see is time. How many impressions is something going to get before the community notes pop up? 10,000? 100,000?
~~Jonathan Swift~~ uh... ~~Mark Train~~ uh... ~~Churchill~~ oh, fuck if I know