Been the opposite experience for me with my Fairphone 3. I bought it for the reparability but the fucking thing refuses to break, no matter how much I mishandle it.

Charger port not working without jamming the charger in just sounds like pocket-lint to me. Has happened once every year or two with almost every phone I've ever owned. Grab a really thin needle, turn the phone off, unplug the battery, and GENTLY scrape the border of the USB-C port out. It'll probably fix the charging port issue. Always has for me.

Fairphone 4 user here too. I also got it second hand, but immediately replaced the OS with CalyxOS. It seems fast to me. My last phone wasn't.

My only problems with it so far is the lack of a jack, that I need to remove the battery to remove the SD or SIM card, and the screen seems too easily scratched. It was scratched when I got it, but not this mutch. Its in my pocket with nothing else, but the screen is basically full of micro scratches while my previous phone of 8 years has (which was a very cheap phone even back then) almost no scratches at all.

I just buy cheap refurbished few year old flagship phones and put custom android ROMs on them. You get flagship quality for cheap and its literally full on recycled.

The same experience, sadly (Fairphone 2). I also bought mine used (so it may have had a long life before that), replaced the battery, and shortly after had enough components fail at the same time to make it not worth fixing. Mostly touchscreen problems and slowness. Shortly after I moved to a new country and found it couldn't connect to the cell network there (even with a new SIM card) so that was the end of it.

It's a real shame, I love the concept of it

Fairphone 3+ working really well for 4 yeats, but I feel it might be a little hit and miss, for example another person I know got more issues with fingerprint sensor and if it falls wrongly (like on the buttons, there might be issues you don't have otherwise

Mine works perfectly after two years. The microphone placement is a little wonky as it is on the left side to the screen (why?). This results in me placing my finger over it frequently which fucks the audio.

It is pretty fast and I never have issues with running any apps or android. My battery is also good.

For your charging port, have you cleaned the inside with a toothpick? Usb c ports getting gunked up is inevitable.

That being said, there was a famous problem with ghost touches on the touchscreen. I had this too, but after an update it was "fixed" with software. So whenever the ghost touches occur, the phone discards the input. That does mean no more random inputs but sometimes an unresponsive screen. So not really a perfect solution.

This issue had thousands of requests on the fairphone forum. However the response from fairphone was slow and inadequate. For such a relatively expensive phone I expected more.

all those non bigname non bigmoney are

I have been using the same $20 alcatel flip phone with little degradation in quality for 2 years sounds like a skill issue.