This is official build by Lineage OS 19.1 Android 12.1/12L for OnePlus 6 and 6T

Download lineage OS 19.1 oneplus 6 released on 26 April 2022

LineageOS 19.1for oneplus 6’Fajita released on 28th April 2022

Download gapps::
NIik gapps download SL names package for android 12L

Types of pacakge core, basic etc to understand what is that please check:

Fix for Hey google not working (need root access so flash Magisk 24.1 in twrp)
[ select pixel launcher installation while you flash module ]

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OP camera app:(New build)…