My current phone is a cheap Samsung. It's awful. The usb-C connector has never worked for data and only barely works for power (the plug sits at a funny angle and doesn't charge unless it's "just right"). There doesn't seem to be any debris in the connector and I've tried a couple different cables, so my best guess is just the connector came from the factory misshapen.
Phone reception is terrible where I live, but I'm not sure if that's the fault of my phone or the carrier.
Over time lint and dirt builds up at the end of the USB-C port. It gets compressed there so you won't immediately notice it. Try to find something small enough to put in there and carefully scrape over the backside.
That reminds me of the WinPhone days. The Moto Q was an awesome device built like a brick.
Samsung knocked it off with the BlackJack, which itself was an obvious copy/knock on Blackberry. It felt like such a downgrade - cheap plastic, hollow, and really buggy. Sounds like not much has changed since those days...
Phone reception is terrible where I live, but I'm not sure if that's the fault of my phone or the carrier.