Keep in mind that my basis for comparison is a Galaxy S9. The Fairphone feels smoother and more responsive most of the time, but you do occasionally get freezes and lag spikes, mostly when you try to minimise an app that is currently loading something from my experience. Particularly heavy websites also slow it down sometimes, but pretty rarely.
And I wouldn’t really call the design “that bad”, I was listing off my issues with it, so it might have come across that way, but the majority of the time it works completely fine.
The map looks and feels amazing, one of my favourite worlds in a game, and the main story missions are really, really good
BUT
To unlock said story missions you have to do multiple hours of open world tasks, most of which consist of going to an area and mindlessly killing everybody. If you enjoy grinding, you will probably like it, I have a friend who does, but I couldn’t bring myself to finish it because I found unlocking the story missions mind-numbing.