https://twitter.com/AlKapDC/status/1372207813355839503
A false conspiracy theory has spread widely in the far-right internet (not just within the QAnon community) that some incident involving a microphone and Biden talking to reporters shows he and the incident were somehow faked.
Since Biden was inaugurated, QAnon supporters have pushed false claims of supposed proof that Biden hasn't really been president & his activities as president haven't been real. This may be the first time those claims have in some manner really spread elsewhere in the far-right.
They put the mics close enough to touch you, so of course if you extend your arm, your hand will go in front of the mics. If his hand had disappeared, that would have been very suspicious.
Note the obvious consistency of the hand covering the mic which itself covers the suit – in both angles. This is just a mic being held very close Biden's body.
You wouldn't color-key objects to disappear behind his hand but not his body.