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.

[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.