Q linked to the following tweet:
Q mentioned that they cannot control exactly when their posts get to the Internet, so sometimes posts that should be simultaneous with POTUS tweets are not exactly timed.
However, at this point, just about everyone accepts that Q team is working with POTUS, so the “proof” of posting at the same time is not really important.
Also, the handlers for FLOTUS arranged a Q for her onscreen appearance:
The Anons on the chans are still chatting. They are coming up with graphics such as the following: