

If you want no cellular tracking: remove SIM, disable eSIM, switch on airplane mode and disable WiFi-calling if not disabled already.
Yes unfortunately your device has already been “fingerprinted”, but with MAC randomization and GrapheneOS’ work on preventing apps from checking software and hardware identifiers, I think you’ll be fine unless you’re going against the NSA. You shouldn’t be using a phone if you’re up against multiple 3-letter agencies
As you noted in another comment, your IMEI number is out and it has already been mapped to your current location. Which means if you travel with this device and security is tight enough, in theory they will be able to find out where you live. They will then probe for associated metadata from there.
Other than that, there’s not much risk as far as I can tell. Clear your list of WiFi networks before you travel and hope Google’s firmware for their modem isn’t spyware (it likely is though, Qualcomm made it).