There are no stupid questions, only stupid answers…and everyone else probably wants to know, too, but are too shy to ask 😉
Anyway, I would bet yes, because I use the same USB stick on my GLD and QU mixers. They just have different folders, but the A&H formatting is the same and I’d be surprised if A&H changed the USB formatting while keeping the stage boxes compatible. You could copy your USB to a PC just in case and they try it and see. Worst thing it does is overwrite what you saved as a backup.
Hope this helps,
Jeff