Update 12/15/21: Magisk 23016 incorporates fixes for vbmeta header patching; disabling verity/verification is no longer necessary. Update and root should work as it always has - simply patch and flash the boot image. Any update method can be...forum.xda-developers.com
Worked for me, but you'll want for a public way to fix magisk. Which I doubt will take long
Alpha version of Magisk fixes root on December update, but 1.3.0 kernel still not working with the latest update.
If you are looking for my guide on a different Pixel, find it here: Pixel 3 Pixel 3XL Pixel 3a Pixel 3aXL Pixel 4 Pixel 4XL Pixel 4a Pixel 4a (5G) Pixel 5 Pixel 5a Pixel 6 Update 5-13-22: While Magisk 24.0 has been updated for use with Android...