1. Assuming that I did restore the same wallet that's on Computer#1, does the wallet restored on Computer#2 contain 100% of the assets which are in the wallet on Computer#1? If yes, then I don't need to engage into the breaking of the password using for example JohnTheRipper.
If the seed phrase you actually did restored on the second computer was actually for the first computer then there is no need to restore the wallet using the wallet file again. The Password is not Also needed when restoring using seed phrase. You don’t need to engage in any breaking of wallet. Restoring from wallet file is needed when only you don’t have the seed phrase