I like the G5 for its changable battery! But Lineage doesn't ship own support for the dual camera.
(No LG Stock Camera App available - a bit referring to * - the links there are dead unfortunately)
The App CameraMX is great!
It is the only app I found that supports the standard as well as the panorama lens!
I'm running Lineage 14.1 on my LG G5 (H850) and the app seems to bring own drivers.
There are some filters to pay for (non-pushy) and the response time could probably better, but all in all it is a good, tidy app with many functions and its discovery was a real revelation to me.
I hope it can be as helpful for somebody else, just made an account only for sharing this
* PS: I can't post links yet, so you have to search it on your own. Hope to help you guys