"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:
https://keepassxc.org/docs/KeePassXC_UserGuide#_adding_totp_to_an_entry
#otp #totp #keepassxc