No. The OnePlus 6 was my first phone where I really didn't feel like bothering with the hassle of custom ROMs. Back in the HTC Desire and HTC OneX days, while fun, it was always such a gamble what feature might not be working on each ROM. I just wanted to not have to worry about working camera, bluetooth or GPS any longer.

I'm not sure, but does the OnePlus 6 even have good LineageOS support nowadays?

edit: Apparently yes it seems. Wow, maybe I'll give that a try one of these days and see what it's like.