Intel's Spectre & Meltdown vulnerability few years ago did not teach anyone anything? All processors have a backdoor whether you like it or not. AMD/ Intel/ ARM all have backdoors built into them. Because the processor is so complex it take a long time to find them. It does not mean it is not there.

And about all these degoogling hoo ha. Look.... all the phones even the most un custom rom like Pixel phones does send tons of user data back to google and chip makers. Whether you like it or not.

Ya'all say its wrong its bad its invasion of privacy, blah blah blah. But ya'all still needs those services to get on with your lives. Whatsapp/ Waze/ E Wallets.... all these owns your data at the time you up signed with your phone number.