would in a potential Airdrop from Metamask the Account 1 receive the tokens where it was swapped or the Wallet?
Can you tell me what kind of airdrop is this? i can help you to check it out what's the requirement to be eligible to recieve the airdrop.
So if I've a wallet and made 5 swaps with 5 different Accs would I be still eligable for the drop with the 5 Accs or just once for the entire wallet?
It depends on the requirement to receive the airdrop, if you are fulfilling all of requirements and then you will be eligible to receive the airdrop. having some swaps in your wallet didn't mean you have been fulfilling the requirements. It must be checked again. if you are fulfilling requirements and you will be receive your airdrop tokens.
And if someone is using his trezor/ledger with Metamask will he be eligable too?
As long as it has ever been used to do swap as a part of requirement to be eligible as a participant of airdrop and then it will eligible too.