I bought one way back in 2015. A BQ Aquaris E5, quite decent hardware, factory-installed with Ubuntu Touch. It was an absolute disaster: buggy as hell, even the most basic native apps (SMS etc) hardly worked. Obviously no way to run Android apps. Somehow I made it work for about 3 months before giving up and flashing a CyanogenMod ROM.
There was one silver lining. At one point during those 3 months I managed to lose the phone in a (completely anonymous) taxi. The interface was obviously so weird and crappy that the taxi driver actually replied to my SMS and returned the thing to me.
Any decade now it will be ready!







Since I owned and used it for a year or two, yes, I did probably know one or two things about it. Better just to make your point if you have one to make.