Just root it it. In waiting to unlock the bootloader, you can disable unwanted apps either via ADB or simply from the application manager.

I installed LineageOS and F-Droid. No google apps services. Very easy to use.

On an loder phone that I struggeled to unlock the bootloader on, I went a head and uninstalled all that I could, then disable the reste. Cut internet and autostart etc, on settings apps (Xiaomi phone).Then used apps from f-droid.

Traditionnaly I always install custom mobile operating systems like paranoid android or LineageOS and just not use gapps.

Where does this information come from?

Where does this information come from?