First of all, let me echo @de0u's statement and thank the users here who got heated for resolving things amicably. I have removed a response from one participant in that as they themselves also now seem to realize it was out of line. Let's all remember that we're on the same side here!
It seems a lot of people are interested in whether face unlock will be enabled/supported on 8th gen Pixels in the future. The answer that I can give y'all right now is "it has not been determined yet".
7th gen Pixel face unlock was very insecure, and was therefore not included. 4th gen Pixel face unlock was very secure, due to having dedicated hardware to properly support the feature securely, and was therefore enabled/used by GrapheneOS.
8th gen Pixels are somwhere inbetween, where it doesn't have the dedicated hardware, but Google seems confident that they have "software solved" the issue, essentially. The team isn't going to include just based on that alone, so it needs to be determined that it is something that's secure enough that it makes sense to include in the OS. Unlock methods not being secure is not a minor thing. That's why pattern unlock is not available in GrapheneOS, and why we made the choice to not support face unlock on 7th gen Pixels. For us to enable it, we'll need to feel confident that it is adequate. Your patience is very much appreciated while we decide. :)