You shouldn't OTA update a rooted phone to begin with because those updates don't account for changes you may have made. you should be downloading the updates from here: https://developers.google.com/android/images and flashing them manually
You don't need TWRP to root your phone. download the latest firmware, download and install Magisk Manager, take the boot.img file from the firmware, modify it with Magisk Manager and flash it in the bootloader
So I've hit a snag, I am looking for the "sargo" code on google git (https://android.googlesource.com/device/google/) but it doesn't look like it exists all they have is bonito (pixel 3a XL). So I guess I have to wait unless I'm missing something because I'm being a noob.
This guide is for academic and development purposes only and should not be used to circumvent any contracts you have with you cell carrier.
You need to be rooted in order to enable wifi tethering.
Rooting and editing your stock image voids most warranties.
Follow this guide at your own risk. (I...