SELinux should be fine now, and in general i think that we are ready to share our progress on LineageOS for FP6 
I have uploaded a build and the necessary images for the installation here: Release LineageOS 22.2 for Fairphone Fairphone 6 (FP6) 路 arian-ota/ota 路 GitHub
To install it, unlock the bootloader, flash recovery.img from the release and adb sideload the zip
Be aware that the moments switch does nothing currently and there is no eSIM management (as i currently don鈥檛 have an eSIM to test it). On the other hand we do have some nice improvements compared to the stock ROM, for example we fixed the delay of 205ms while turning the display on and LineageOS provides many more neat features 
If you face any unexpected issues feel free to create an issue here, but make sure that there isn鈥檛 already an issue for the problem: GitHub 路 Where software is built
If you want to build it yourself, you can find the necessary kernel repositories and devicetree on my GitHub, but take a look at issue #7 before.
You will have to generate the vendor/fairphone/FP6 repository yourself using the provided extract-files.py script in device/fairphone/FP6.