I use 2FAS because Aegis isn’t available for iOS. :) It’s more maintained than Tofu and is more feature rich. My main gripe is the backup format. It’s unnecessarily complicated. Not a deal breaker, but close.

Closed Network Privacy Podcast

Great podcast and an accompanying great Matrix room(s).

In English: Link

To add to this, “Kvaesitso is available in the official F-Droid repository, but all features depending on non-foss external APIs were removed.” This is preferable to a lot of people.