The hub does not seem to be a problem, but the boot loader is.

You can boot a live USB linux easily from a USB through a hub. I have used this

https://www.amazon.com/gp/product/B08HQW98TH/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

But installing linux on a usb stick would require a bootloader (like grub) and I could never make it work on a usb with the galaxy book because of a secure violation (whereas it could work OK on an old laptop).