TOTP App

TOTP App
Browser Integration Mobile
Browser Integration Desktop
Pro
Contra
KeepassXC 
recommended
yes
Via browser plugin.
Save extra data.
Optional: Sync to many devices.
Every browser, on all devices, offers the same latest credentials.
 -
Microsoft Authenticator
yes
-
Known to many users
Only on mobile.
Only on ONE device.
Apple Password (App)
Yes
Yes
Very handy if you are in the Apple ecosystem. It often autofills automatically (similar to password auto-completion). Otherwise, you can open the Passwords app to view the code.
Limited outside the Apple ecosystem.
Google Authenticator
yes
-
-
Only on mobile.
There are other apps and online services, acting as TOTP Apps.
TOTP is a standard.
MS-Authenticator: If the mobile phone changes,  remember to de-register first, before a new one can be registered.
Register a TOTP App
Create a QR Code / TOTP Secret
Login https://login.math.uzh.ch
Enroll to 
Configure TOTP (...
Scan the QR Code / copy the secret
[1] Open any Authenticator App on your phone, or (if using Keepass on a desktop) just copy the secret
[2] Type the new TOTP Code shown on your app into (2), to finalize the registration.