Have you tried/are you using Immich?

Thank God I’m European and the privacy laws here are pretty strict, so at least the official channels can’t collect and provide our personal data. I’ve a second SIM card installed in an old smartphone that forward (done with the Tasker app) to my Telegram account all the SMS that it receives and the phone numbers that try to call it and I use that number when is mandatory on a website/service.

It seems pretty extreme to me. Any app needs your consent to access your contacts and if you wanna hide them from Google to (if you’ve an Android smartphone), you could just download an open source contact app (like Fossify Contacts)