By reading about the new inclementations on Google I decided to leave from Google services entirely, already stoping using Windows for 6 month and Chrome, but sttil dont sure about a gmail(Some important things are signed in gmail accont) and some services like Youtube and some android telemetry(already rooted)
What are you not sure about the Android telemetry? Or what problems in this field do you expect without a Google account?
And also courious, what type of signing does Gmail provide that others don’t? You mean PGP or S/MIME?
I dont know what I can do about android without break and about gmail its signed in everywhere that I used like steam, and every other important app that you can think, and tutanota is good but mostly paid(I think so)
GrapheneOS, CalyxOS, /e/OS, etc
This is a very effective way to ensure your activity is tracked by Google across the web.
Delete your accounts. Get a relay service (Firefox Relay, SimpleLogin, AnonAddy, etc.). Create new accounts with alias emails.
Get a password manager (1Password, BitWarden, Proton Pass). Save your alias, username and unique password in the manager.
That should be a good start.