Well, the Jumpgate/Core Dock doesn't support Ethernet. It also only has two USB ports, which isn't a total dealbreaker, but isn't that great.

I ended up ordering one of these. I'm not really super pleased with the feature set but it's really cheap, and it should be a workable solution in the short term until I find something more satisfactory. Thanks for the help!

I have this power supply - https://www.amazon.com/gp/product/B0BBYSZ2PV/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 and this hub on my devices and it works perfectly. https://www.amazon.com/gp/product/B093FKT9BF/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 There are other hubs that work, but I've liked these the best. I had a tube style Shield but unfortunately it died on me. I've found the CCWGTV devices work perfectly for what I need..

Gotcha. So Thunderbolt isn't necessary, but good for having multiple displays in one port.

From my understanding then, I don't need a pricey dock after all? I could just plug one monitor directly into the MBP via HDMI and get a cheaper hub and plug another monitor via HDMI, like one of these:

https://www.amazon.com/Satechi-USB-C-Go-Multiport-Adapter/dp/B08X1YVCZG

https://www.amazon.com/Satechi-USB-C-Hybrid-Multiport-Adapter/dp/B09JDSLYZS

https://www.amazon.com/UGREEN-MacBook-Thunderbolt-Delivery-Compatible/dp/B087TSQR6X

https://www.amazon.com/UGREEN-Multiport-Adapter-Ethernet-Delivery/dp/B093FKT9BF

One mirrored and one extended display