Its already here, but no one shared links. This is from yesterday 23..Beta 12 soon.
OxygenOS Open Beta 12 and 7 is beginning to roll out for the OnePlus 8 series and OnePlus 8T respectively, though without many changes.www.xda-developers.com
Amazon shopping apps, and some OnePlus stuff for Indian market, like cloud services and work life balance.
Oh, thank you for the timely response and information. Mind if I ask how you managed to flash the ROM in the first place? I'm fairly new to all this. Tried with Lineage and another recovery (not TWRP) and couldn't seem to do it.
I downloaded zip from above and did local update from settings. You just have to move the zip to /root directory on local storage for it to be visible in updater. If You want to retain root after update don't reboot immediately, but go into magisk and flash it to inactive slot, then you could reboot (ツ)_/¯