CalyxOS (is coming to) is here for FP4!

[hirnsushi]

@R2D2

When I install Magisk and root, does the bootloader have to remain unlocked?

I’ve answered that same question just 12 hours before you asked, please try to use the search function

@hirnsushi

You can’t lock the bootloader if you rooted your phone.
I am by no means an expert in AvB, that’s why I’ve called it a minefield, but since rooting your phone does alter your boot partition the hashes wouldn’t match anymore and hashes that changed are no longer verified

You have two choices:

• If you switch to stock (unrooted) and relock the bootloader you don’t have to unlock the bootloader to perform OTA updates, but you also won’t be able to use root.
• If you want to stay rooted you’ll have to disable Magisk every time there’s an OTA update

@R2D2

Also, with root and Magisk, will SafetyNet attestation still work?

You’ll find that answer in the root topic as well: FP4 Root Access is possible, maybe a bit risky - #61 by Aaanze
TL;DR it’s possible, but it’s complicated and by no means reliable. If you depend on SafteyNet for something important, I’d suggest not to use Magisk.