It's hard to tell. Trump flags were predominant but I saw lots of Confederate flags (including those on fashionable Duck Dynasty apparel), Jesus Saves flags, Don't Tread on Me flags and, embarrassingly, a few rainbow flags.
The rest have no right to carry an American flag. Traitors and insurrectionists don't have that right.
I don't think you did see lots of Confederate flags. I think you saw the same one over and over because it sells the story many want to tell, that this was about white supremacy instead of militia-mentality and rebellious spirits who always reject government.
This pic is typical of every one I saw on every media outlet as it aired pics of the rally and then the assault:
And, whether you like it or not, traitors and rebels have the right to carry the American flag just as much as gay activists, Communist Party members, Baptists, Boy Scouts, Veterans and anyone else who IS an American, as well as those who aren't. It's not a right or a privilege even. Just like the "artists" who put crucifies in urine or desecrate flags, it's an action.
People are always going on about this man isn't a real gay. Or "America is better than this."
No, it isn't. This IS America. It's full of wackos who voted for Trump and others who voted for Biden.
Wanting the ones we agree with to be "the REAL Americans" is folly. This very forum loves to post that this or that view should be run out. That's nothing more than political rhetoric.
Criminals should be punished, and as we're told repeatedly on this same forum, they are still Americans too, and shouldn't be punished for their crimes after their sentences.
Punish the vandals and terrorists, but stop all the spin about who the miscreants are. They are a broad swath of gullible stupid Americans who bought a shameful con from the president that the GOP enabled, period. It had little to do with white supremacy.