Not an expert, but I recently heard that apparently not everything is perfect in fairphone land: https://discuss.grapheneos.org/d/24134-devices-lacking-stand...
With the hardware I'm not impressed, and on their own forum I've seen plenty of people reporting issues with overheating on the Gen 6. Hopefully kinks have been ironed out on their 6+.
The current CEO also has a persona that would stir up any community (read a few of his AI-gened posts on their blog, if interested of context).
Still holding on to my FP4, but they are not of consideration on my future phone purchase, unless there is some kind of reality check over there and improvements materialize beyond words.