This brain-dead Q-anon clip was posted here yesterday. It has now made Free Republic.
Who is Walking Across Notre Dame Facade???
To them anyone in a robe is a Muslim. A clearer version of the video seems to show an emergency worker in a hard hat and protective clothing. It seems to have occurred to just ONE freeper that certain other guys in robes are frequently found around cathedrals without necessarily being Muslim arsonists.

The freeperati also seemed to have latched onto a claim that it took the Paris Fire Brigade either an hour or two hours to respond to the fire. This originated at some Macedonian fake news site. I think we were seeing video here something like 25 minutes after the fire was first noticed.