Quark inventory not displayes inventory sorting buttons.
vanillla:

Sophisticated:

The screenshots are made with the same config at the same time.

you can add those screens with quark configs

I'm not sure what I should see there

I'm not sure what I should see there
Full quark config, all screenshots are made with it.
https://pastebin.com/mJ0K4Kbj

Inventory storing one and it's childrens

Inventory storing one and it's childrens

"Inventory Sorting" = true

[management.inventory_sorting]
	"Enable Player Inventory" = true
	"Enable Player Inventory In Chests" = true
	"Enable Chests" = true
	#Play a click when sorting inventories using keybindings
	"Satisfying Click" = true

The settings you're looking for are in the general section of the config, not in there