Wow, that "hardware page for my device" is truly incredible. Kudos.
Yes, I have installed packages via LuCI because out of the box, there was no "lsusb" command, so I used the software page of LuCI to install "usbutils". And that worked.
Please give me an example package name (that existed in 19.07.8) and I try that out right. Then we know, right?
For now (and unless that limits my choice of hardware dramatically), I would like to keep that 19.07.8 system that Glinet made, because (a) it's actually working, and I do like their added UI, and (b) in a few months they are going to officially publish their 22-version anyway.
This is what they call their fork, taken from LuCI:
OpenWrt 19.07.8 r11364-ef56c85848 / LuCI openwrt-19.07 branch git-21.189.23240-7b931da
With kernel 4.14.241
Thank you so much, I am really amazed about openWRT, what a cool project!