BladeFederation

Offline mode is available for free on the mobile app, but not desktop. Doesn’t work offline for browser extension at all, which is how auto fill works on desktop, which is much more useful. And offline mode for Proton  just means you can view the passwords you already created, not create more.

There are true offline local password managers but as long as the cloud sync is encrypted, I see no reason to avoid using it and miss out on half the functionality. Auth is more debatable but I’ve found uses for cloud hosted Auth too.

Because you should have your email, password manager, and authenticator be 3 different services. Otherwise there is 1 point of failure.

No, Play Store does not require Play Services integration, nor does it mandate any trackers.

In practice though, most use Play Services for push notifications, and there are a LOT of apps with at least Google Crashlytics, Google Firebase Analytics, and Google Admob trackers. Check out Exodus for tracker reports. Or use the Tracker Controller app. Just note that some trackers are pretty benign, or even a security feature, like Sentry.

Let’s gooooooo

Almost never. I lived in a bad neighborhood for too long, so I doubt that habit will change.

It would explain a lot tbh.