Samsung Pass passwords cannot be exported to another password manager. They are encrypted to Samsung and they do not allow exporting a .csv file. This is one way to keep you in the Samsung ecosystem, as people don’t want to abandon years of passwords. I hope you don’t have a lot of passwords, because you will have to enter them manually into any new password manager. There is nothing wrong with using the wallet, even if you only use it for Samsung Pass. You are not required to add a payment card, or any other information you don’t want to.
If you truly want to move to another password manger, here are your options for transferring them from Samsung Pass. 1) Manually copy (or copy/paste) each entry into your new password manger, 2) download your new password manager to your phone and each time you have to enter a password on a site or in an app, let Samsung Pass fill it in (or look up the info in Samsung Pass and manually enter it), but before you hit submit, save the info to your new manager. When all your passwords have been transferred over, you can then uninstall Samsung Wallet. It will be a long process if you have a lot of passwords. Save all new passwords to your new password manager.