I have recently started using a password manager, and I am worried about having a plan B in case I lose access to the vault file and need to access the passwords: for instance, both my laptop and my phone get stolen at the same time while I am on the road, and I need to access my funds on e-banking to buy a plane ticket.
Are there best practices on how to deal with scenarios like this one? One approach could be "keep your e-banking and your primary e-mail password outside the password manager, and don't use 2FA for those", but I understand that this weakens security in a different way.
This question is similar to this one, but I am asking about a different risk scenario.
EDIT: Just to clarify after reading the first two answers: I have backup, but accessing backup in a scenario such as the one I have described is a problem in itself.