Title + As I dont have a G account signed in they cant track me as a person and I also turned diagnostics data sharing off. Will it be help they might track me a as person on this device.Right?? Also as to quit google I have to quit internet so will it be advantageous to do this thing.
Even if you did run it without a Google account, in order to even use any phone with Google services you're required to accept the Privacy statement; of which tells you that they are allowed to collect basically any information they want regarding what you do, so it will be linked to your device ID not a Google account but they will still be collecting information on you it just won't be linked to a Google account will be linked to a device identifier much like how it currently is with an account
Will they be able to assign that data to my name.
possibly if they can ever link you using another metric such as logging into an account that has your name, they can then link it to your advertisement ID. I know Meta is able to do that since that's how our corporate intranet works on it so I expect it's in googles capability
Yes. They will be able to sign that data to your name (and home address or usual residence).
It is possible to disrupt your digital fingerprint to keep Google from assigning that data to your name...
But realistically, Google succeeds in assigning each person's digital fingerprint to them, for the vast majority of people, who use stock Android, the Chrome Browser, have cookies enabled and don't use a VPN 100% of the time.