Have you ever seen either kind of port break on the inside?

This speculation is just as weak without any evidence.

At the same time, if the springs on the iPhone-side connector loosen and can't hold onto the cable, you have to replace the whole phone and not just the cable.

So Apple had to use pretty strong springs, resulting in a lot of friction on the pins. That made them easier to damage, so they had to switch from gold to a crazy super-resistant rhodium-based alloy for contact coating.

I find it's often lint in the USB-C port. Cleaning it out with a non-conductive tool like a toothpick or a dry toothbrush usually solves it for me when that happenens.

I've had dozens of devices with USB-C. I've yet to have even a single one that had any problems with them. To be fair, I'm using iPhones mostly for app testing, so I also had very few issues with them.

What do you guys all do with your devices?!?

Your Pixel 8 could be about two years old. The connector performed way under spec and you should send it in for repair (assuming your are in a country with a 2 year warranty period)

My lightning connector on my iPhone 12 is completely unreliable - I need to twist the phone against the cable to get it to change.

Fortunately MagSafe works fine!

My experience is that plugs from the same manufacturer as the device tend to keep holding tightly, but mixing makers is unreliable. Apple plugs in particular tend to slide out of my samsung phone really easily. I guess whoever speced usbc didn't bother with the details of how it would stay in, and every manufacturer figured out their own solution.

exactly!

> These non-axial forces are a known cause of USB-C port failures and are explicitly not accounted for in the standard 10k-cycle durability claim.

I agree and that's par for the course for any standard, they have to limit the requirements to something that is economically manufacutrable and testable.

Meanwhile, lightning connectors have no public standard to speak of so this is a mute point.

> USB-C center tongue female design means that the port will break before the cable. With lightning, the cable plug takes all the stress.

This is another a priori armchair expert argument which I just put very little weight on without data to back it up.

> Apple doesn’t publish insertion cycles rating for Lightning connectors, so it’s impossible to provide empirical evidence of that.

That conclusion does not follow. We can still obtain empirical evidence through direct testing without Apple publishing anything.

> In my personal experience, I’ve had two USB-C ports go bad on two MacBooks. I’ve yet to own a USB-C-charging phone, but I’ve never had a Lightning port fail.

That's fair, everyone has different anecdotal experiences as a foundation for their opinion here. The problem is that anecdotal data is just not very informative to others, that's all.

> USB-C center tongue female design means that the port will break before the cable. With lightning, the cable plug takes all the stress.

Are you sure it's the center tongue which takes all the stress, and not the round shell?

AFAIK, USB-C is designed so that the cable breaks before the port, because the parts which wear the most with use (the contact and retention springs) are in the cable, not on the device.