I really wanted the official Ubuntu phone to catch on. I gave to the IndieGoGo for it but sadly it wasn't funded, so I installed Ubuntu mobile on a different old phone (a OnePlus One I think?) like a decade ago.

I thought it was very cool. It felt a lot more like a "computer that I could use as a smartphone" than a "smartphone with some computer stuff". I thought the interface was clean and nice and it was fun to hack on.

I really should buy a compatible phone and play with it again...I'm sure they've done a lot of work on it.