The device trees are in the second post of this thread. You could fork them.
I think I got the culprit responsible for causing bootloop whenever I try to flash a custom rom. Android Verified boot /DM verity was enabled. But I couldn't find any way to disable
it. Tried some universal dm verity disabler zip but caused my device to bootloop. Any help on this is appreciated
No, call recording does not work. Safetynet fails on Magisk 12.4 even after enabling Magisk Hide so it's a no go for me. Going back to OOS
EDIT : After manually setting the CTS profile as my phone (One Plus 8 Pro IN2021) , safetynet passes. Apparantly CTS profile is set to OnePlus 8 on this.