This is one of the oddest threads I’ve seen in a while. I have dozens of USB-C devices in my home, including a Nintendo Switch and 5 Switch Pro controllers. The minority of my USB-C devices are 8 Apple phones and tablets. One is an expensive rechargeable light saber.
Not one device has a loose connection. And if it did, it would be a manufacturing defect. My iPhone 15 Pro USB-C connection is the tightest of them all. When I got it I was surprised that I had to be more careful with alignment and press harder than any other USB-C device I have.
I’ve acquired the non USB-C devices over the span of about 6yr. Not one problem with a device or a cable and I’ve bought cables from several different manufacturers.
If you have a device, any device, that the USB-C cable is falling out of without being pulled, I would suggest getting it replaced/repaired.