Just upgrades my #lgg5 to #LineageOS18. I was a bit worried stuff might break with the new scoped storage, but everything seems to work OK. Basically seems apps have their own private storage now. Breaks tools that report disk usage, which is a minor annoyance.
But the biggest issue for me is the gallery app loosing an overview of all the pictures on the phone. This really sucks. I often look through the timeline for a particular picture, or all the pictures from a messaging app.