I spent a while some time ago trying to watch for any modern phone to get full LineageOS support, and eventually just gave up. The closest things came was "partial support for the Galaxy S8, but it will ruin the camera". How much of a future is there here?
Edit: from elsewhere in the thread ( https://news.ycombinator.com/item?id=16460503 ):
> I bought an S8 with the intention of putting LineageOS on it. Sadly to this day there are things not working which are essential, like making calls or using LTE data... or wifi.. or the camera.
(Just to be clear, the Pixel is losing this comparison... it isn't supported at all. But the fact that the Pixel is losing doesn't mean we can say Samsung is winning... this looks more like a loss for everyone.)