Privacy centric open source authenticator apps

It is only human to get comfortable with the easy default big name options like either Google or Microsoft’s “Authenticator” app.

Does anyone have an recommendations for [?free?] open source alternative “authenticator” apps for: iOS, Android, and Windows?

I was surprised to find few options for Windows based “Authenticator” apps
“WinAuth” is the main one I found: Download - WinAuth

2FAS is a good alternative. It’s totally open source. https://2fas.com/

I’ve been using Raivo for over a year now, it’s been rock solid.

I really like https://getaegis.app/

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for desktop cross platform: KeepassXC
for mobile: Strongbox (even the free version is feature-laden and also does OTP)

On Android, I use Aegis.

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