Suggestions for the Pinephone pro

[ryo]

however i do not think google record every voice call on android world, certain point solid evidence is needed.

Likewise, solid evidence is needed of them NOT doing it.
The most accessible piece of evidence is in your Google account settings, you can actually playback a tiny selection of what your phone is recording without your knowledge or consent.
Of course you can disable that feature (though it's still not certain whether it will actually turn off or just turn it off for you to make you feel more private), but it's turned on by default, and how many people who own a Google Android phone (so not a degoogled one) would even consider checking their Google account settings anyway?
They just log into their Google accounts without any questioning whatsoever.

although, google has technical capability through "google play services" and other closed components but i don't think google is using those at the moment.

It's a PRISM member and a company set up by the CIA, that should say enough on whether they use it or not.
Snowden revealed so much about the NSA which forced Obama to admit to it every single week, and WikiLeaks revealed far more about all sorts of government agencies of all sorts of countries, and yes, Google and Facebook too.

like whatsapp does not send actual messages to facebook. facebook just collects all the metadata and abuses it. whatsapp is closed source. whatsapp does read messages in app level and uses them for ads. backups might be one way how private data goes to cloud or clouds.

It's closed source like you said, so we can't verify the claims.
But knowing FBIbook, they certainly do.
Well yes, messages are end to end encrypted (according to claims, because again can't verify because closed source), but Facebook owns the same keys it generates for you.
If you don't control the keys, the encryption is meaningless.

This is why I advocate for XMPP so much, since you generate the keys on the client side.
And if you don't trust that, you can use GPG so you explicitely generate the keys yourself, and therefore have full control over it.

Plus Whatsapp is owned by Facebook, and so Oculus is.
At the beginning Zuck made it clear that they will leave Oculus alone, but ever since they own it, they started requiring you to link your Oculus account to Facebook, and as soon as you got banned from Facebook, you also automatically lose access to your Oculus account and therefore all the games you paid for.
Which by the way you should always have physical copies of games, or otherwise have digital copies stored on your local computer, so there's no central authority that can deprive you from your games, or make you pay microtransactions like a motherfucker only so they would take the money, shut the servers down permanently, and run (aka, live services).