I am pretty sure it's whole ethereum ecosystem based airdrop (snapshot is already taken) where all addresses are eligible whether you connected your wallet to website previously or not (but ofc you will have to connect wallet to claim).
I meant to say,,, it would be better if you just need to connect wallet to claim, and not connect wallet to calculate how much you would get. I would probably say that it makes no difference in the end, but I feel this way is a little bit safer.
I have not claimed stuff in a long time but let me see what I get from this