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I have a couple like that in my mini rack. The problem is the power supply: these take 65W, so I figured I could get a quality 140W charger and power them both, but it turns out that things like "unplugging something else" would kill their power. I had to spend a lot more on a StarTech charger to get the performance I needed

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Yeah, it's due to power renegotiation.

It wants to supply the maximum power possible as you don't want a device which can charge faster stuck at a lower rate, so it wants to renegotiate with the sink, and the lazy way to do that is a full reset.

Which startech product did you end up getting? One of the hubs or chargers? I have a similar issue with various USB-C rack devices

Jeff Geerling has done a review and follow-up on one: https://youtu.be/twoAW0eLiXY

I've considered just getting a bunch of 65W USB-C buck converters and DIY one.

This charger: https://www.startech.com/en-us/computer-parts/424dna-usb-c-c...

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