Originally Posted by cauchy

Yes you need to claim from Air France. For a 3 hour delay on a long flight, it's 300 euros (to get the 600 euros it's 4 hours).

The EU compensation doesn't apply if there are exceptional circumstances. Now I don't see missing a crew person at an airline's fortress hub as an exceptional circumstance, nor do I see Covid as an exceptional circumstance (as it was well known to both parties when you bought your tickets), but sometimes (often?) the airlines don't see it this way. In the UK this has led to a whole industry of flight delay claims consultants chasing the airlines for passenger's money.