On the USB-C, not saying this was your issue but really every USB-C phone I've had I've eventually needed to use a needle or pin and clear junk out of the bottom of the port to keep a good, solid connection. I don't know if that says more about the amount of lint in my pockets or the design of the USB-C port.
Me too, but as my only phone with USB-C is my Pixel 3, I assumed it was the fault of the model.
Would have been fine to replace it myself but found out that you can not get new replacement parts for the pixel phones and that they are glued up tighter than an iphone with many users reporting that the screen shattered when opening the phone.
Never touching another google product again. While I have had the occasional issue with an Apple product, I have just walked in to the store, they run a few tests and then hand me a replacement on the spot.
FWIW, my 3a XL is working great. I'm might upgrade to a 5a eventually, but only for the water resistance.