Here also problem
Im using debian templates, since i dont know fedora commands because they not so intuitive
I can add small usb flash disk drives with USB-Devices
But big disk drives if i add same way then they dont come up and then lost are top window options to add SDA.
If i remove then from top sda adding works cause can add only if addind like this from Data devices selecting whole sda partition
https://www.google.com/search?client=firefox-b-e&q=qubes+os+cant+see+usb+hdd