Hi, I noticed that the mod does not protect the backpacks when they are placed on the ground, nor the chests from these mods. This happens in version 1.20.1 of Fabric with the following mods:

Sophisticated Backpacks (Unofficial Fabric port)
Sophisticated Storage (Unofficial Fabric port)

Hi thanks for reporting this issue.

I was vaguely aware of this. I am working on a feature which will cover this: #113