I am currently typing this on my Fairphone 4. I personally do really like it and the only thing I would really complain about is the cameras. They are fine but as soon as you get into low(ish) light settings or try to zoom just a little bit it get’s bad. When using 8x digital zoom you basically have pixel soup. And yes, I know digital zoom sucks. But at the same time my Galaxy S7 was older and did this soo much better.
I was also annoyed about the missing headphone jack but it turns out that it really isn’t a huge problem for me. I mostly need it in my car and I just have a dongle that splits into USB-C (for charging) and 3.5mm jack that I store in my car. I don’t really get why Fairphone decided against it but it really doesnt affect me as much as I feared it would.