When you setup one multisig wallet in Electrum, cosigners will need to store some information to build the wallet. Each cosigner will store their seed and passphrase, as well as the instructions for the wallet recovery. The ones they should be storing are:

1. M out of N signers.
2. Cosigners xPubs.
3. As some cosigners use a hardware wallet, their derivation path close to their xPub.
4. Electrum version used to build the wallet.
5. Remember the fact that in Electrum the cosigners are organized in lexicographical order. (In case they want to rebuild it later with something different than Electrum).

Would this be enough for recovery? Am I missing any parameter that might be needed to rebuild the wallet in the future?

Thanks,