It's less stress on a frequently used port. I've got an early M1 MacBook Air where the USB-C port I always used for charging is starting to get flaky, presumably because it's been used so much and because of the weight of the cord + dongle hanging off the side of the machine.

Replacement port for M1 Air can be bought for around $10 off Amazon and installation take like 10 minutes for total newbie like me. All you need is right screwdriver.

Just look for a2337 usb-c port replacement.