I still need to carry some dongles to get HDMI and LAN ports... but i don't need those all the time.
I only carry a power adaptor when traveling. No dongle at all.
> Same for use in the office
I have a dock on my desk. I place my laptop on it and press a button. No dongles, no wires, instantly transforms my laptop into a desktop with two screens, Ethernet, keyboard and mouse.
> USB-C is the superior connector
Agreed. But keeping one or two legacy ports around for convenience is good. Specially when all common peripherals still use it.
...2.4GHz radio interference leading to wifi dropout on many devices when USBC peripherals are plugged in...
Ok, it's not the connector's fault, but still. USB 3 has not been a problem-free advancement.
2013+ Macbook Pros had that problem simply using external monitors in some cases
However, I do think it's funny that the one time Apple switches to an interoperable standard, people complain about it.
Same for use in the office: a single cable connects you to power, an external display, Ethernet, etc.
It's true that most external devices are still USB-A, but that's not Dell's or Apple's problem. It's a chicken-and-egg situation and somebody needs to start.
USB-C is the superior connector: longer lasting, reversible, works for charging, alternate modes, etc.