How did you get the safetynetcheck to pass? Also are you on LineageOS recovery or TWRP?I finally installed this to my own phone since i got feedback that gcam ports are decent enough to be used and since camera was my main concern i postponed this until i was sure.
Install went through with bit of a hassle since i managed to let oos-rom to boot up and wipe recovery once and i had to start from square one. For what i can see with couple days of usage i haven't noticed anything major issues. One thing is bothering me little bit and it is the display brightness does not get low enough. I do believe that OOS side had some black magic in the display settings since when it went darker it gave green tint sometimes and lost all contrast by doing some technical f*ckery, it still helped me to use the phone on bed pitch black.
Adjusting to this bit more bright display will take some time but at least i do not get green tint / low contrast issues anymore.
With the help from @Natethegrate1 and his post (https://forum.xda-developers.com/t/...odlep-11-lineageos-18-1.4192827/post-84630617) i managed to get even safetynet check's go through.
Phone is rooted, safetynet goes through. I can use banking apps and whatnot. Only thing left is netflix being L3 capped so it looks like old time pirated movies but i think i can live with that.
Oh! One more thing. OnePlus's own USB-C to 3,5mm adapter gives error on dropdown menu "the attached device is not compatible with this phone. tap to learn more." but still works just fine.