I was testing storage drawers in an FTB Chunks claimed area and it allows players take items out of the storage drawers if they are not added.
This was tested with my alt on a server.

Is there any way you could add FTB Chunks support for this? I would like to use this mod in land claims.

I found another mod that is more like WorldGuard, this might be a good solution for a server
Yet Another World Protector: https://github.com/Z0rdak/Yet-Another-World-Protector

Well I found this other claim protection mod that integrates with Xaero's Minimap, it does stop players from grabbing items out of the Storage Drawers, and it is just a visual thing now.

The items will act like they are being removed but actually stay in the container. FTB Chunks may have done that but, I didn't test much more with it.

Open Parties and Claims mod for protections that work fine with Storage Drawers:

• https://modrinth.com/mod/open-parties-and-claims