Ultimately, I bought one of these: https://www.amazon.com/gp/product/B07L3VRMZC/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
I plug it into the backside of my Voodoo Lab power supply and it powers both my MS-3 and G10. I never disconnect the G10 USB cable from the receiver, so I don't stress about stress.
It's odd, but it seems near impossible to find a pass-through U.S. AC plug/outlet with an onboard USB connector. But there are tons of AC plug converters that do it. So I'm using that, without actually doing any AC converting, using the U.S. male prong and the U.S. female receptacle options simultaneously while using a USB port for the G10.