I’ll give apple this one thing.
They are really, really good at backup.
I recently had to wipe my dad’s iPhone, I manually backed up his pictures just to make absolutely certain they were all saved but everything else I didn’t even bother.
I logged him back into his apple account and everything immediately started downloading again.
With Google, you’ll get your text messages. Your contacts, your pictures, your videos. Maybe your YouTube history and subscriptions but any random app probably uses Google backup services but it might not.
Aurora store is basically anonymous access to the official Google Play store.
You can download any app because unlike the Google Play store Aurora doesn’t send your phones hardware ID, so if for example your phone is rooted you can get the Disney Plus app anyway.
Fdroid is an alternate app store. They have different things than the Google Play store. They respect your privacy and will let you download any app that is ever been uploaded to them, Even old versions of an app.