"Timed One Time Passwords" can be used with lots of different software. At first, I thought I could only used Google Authenticator, but later realized that it is an open standard. I now use OTPclient on LinuxMint, but I also recommend KeePassXC, which can be used cross-platform. Here's a guide:

KeePassXC: User Guide

#otp #totp #keepassxc