On Ubuntu 22.04.2, I would be glad to ear about a native and secure way to generate TOTP codes for using in any given application which needs 2FA.
Do you know an open-source way of doing that directly on an Ubuntu computer?
All tutorial I can find are based on the "mobile app" way (e.g. using Google Authenticator), which I cannot use because I don't have any other mobile device than a laptop.