[Xposed Framework Modules] i5lee8bit:
I use App List mode, but not White List mode, as I use the Pass SafetyNet option (so basically on Blacklist mode). Because I also have GPay working and all (I've linked to that thread before, it's the one I linked with my list of active modules). Hahaha, I didn't even realize you put in the 2nd post about it not working - weird! Definitely working for me though, using these current configurations.

Since I'm sure others may find it useful, I'll post it here. Also, @C3C076 may find it useful to follow this concept, assuming things are similar for Pixel 3a (I've been a long time HTC user, up til U12+ and only then switched to Pixel phones, 4 for wife and 4 XL for me to be exact).

My firmware update procedure is basically predicated on restoring the stock boot and dtbo (dtbo in case custom kernel flashed) images for your current build, which restores the stock firmware (and therefore recovery) and "unroots" / stock-ifies the phone without removing any of your Magisk or EdXposed configs, which allows you to simply boot into recovery and apply (sideload) OTA zip from stock recovery. Before booting back into system after OTA flash, reboot back into bootloader and flash the new build's Magisk-patched boot image, and when you boot up into system, voila, seamless, intuitive, and relatively safe update to new firmware version. Worst case scenario, if you bootloop you just flash the stock boot image (or even better, a modified Magisk Core Only boot image) and fix whatever is causing the problem.

Here is a link to my guide for September 2020 build, which was the first Android 11 build. There's a bunch of additional notes due to the major update at the time, though some of the info is a bit outdated. I assumed everyone at the time was on a very specific versions of firmware, Magisk, EdXposed, and even modules, etc. But if you read, especially the 2nd post, you can certainly understand how it all works and how we could apply the process from any firmware version. Here's the thread: https://xdaforums.com/t/update-keep...0-009-coral-magisk-stock-boot-images.4160787/

- I recommend giving the procedure a read, as you should be able to understand the intuition behind the process I use.

As we're already (assuming) on latest Magisk, Magisk Manager, EdXposed, Riru, etc. etc, we don't need to worry as much about compatibility of our installed modules before OTA'ing. So basically, I condensed down what needs to be disabled, in my case, to the old GravityBox module (obviously), and the old Kirisakura (my kernel on Q) kernel helper Magisk module. You would also want to disable any modules, Magisk and EdXposed, that may not be compatible with [R] yet.

So here was my update procedure, from here on, coming from August 2020 build already on Magisk 21.2 and up to date EdXposed / Riru / etc. modules - SPECIFICALLY FOR PIXEL 4 XL "CORAL"

(OPEN THE "SPOILER" TO VIEW!):

Spoiler content hidden.

To be honest, I kinda rushed this post, so I'll re-read it later and make sure I didn't make any little mistakes. But hopefully if you read my guides threads and stuff (like, actually read it), the entire concept should be very clear and intuitive to you! Assuming other Pixel phones (at least AB Pixel devices) have similar partitioning schemes, this should be very useful knowledge to have, as it makes updating to new firmware versions incredibly easy and low risk. Good luck, I hope this huge post helps some people / makes a better day for someone! =)

EDIT: @frank93, seeing your linked post, I see you have a Pixel 4a. Unfortunately you obviously can't use the exact files I provided / linked, but you should still be able to follow the same procedure. Just grab the OTA's, plus the full factory images, pull the necessary boot and dtbo files from the factory images, and Magisk patch the boot images for each month, and name / organize all the files and put them aside on your computer. You should still be able to follow my procedure, but with your files. I hope it works for you with no problems if you decide to try it!