This looks like what I thought I needed. I'm going to order it and try it. I'm taking your wisdom about power usage into account, and I'll also plug in the MagSafe power supply into my Mac if there are any power issues.
https://www.amazon.com/USB-C-Gen-Hub-Adapter-7-Ports/dp/B09M7W9MZ7/
https://www.amazon.com/dp/B09M7W9MZ7?psc=1&ref=ppx_yo2ov_dt_b_product_details Would something like this work? I was looking for a Multi USB hub that was only Type C and this is the best I could find that had more than just PD pass through. I just got it, so I haven't used it too much.
Can't vouch for how dependable it is but https://www.amazon.com/dp/B09M7W9MZ7/
There are technical issues with reducing multiple USB C devices to a single port, so you're not going to find much. Plenty have a C passthrough with an additional C charging only port.