All of the vertical slabs for Create Deco have either Bricks or Tiles incorrectly pluralized in their names. Looking at vanilla brick blocks and those of most other mods, they should be <whatever> Brick Vertical Slab or <whatever> Brick Tile Vertical Slab instead of <whatever> Bricks Vertical Slab or <whatever> Brick Tiles Vertical Slab
This is an issue with Create Deco itself as well; I intend to report it there too.

@Nycto97 Thanks for sharing your KubeJS scripts.

ServerEvents.recipes(event => {
    event.remove({id: /v_slab_compat:createdeco*/})
})

JEIEvents.hideItems(event => {
    event.hide(/v_slab_compat:createdeco*/)
})

Hm can you check their IDs? The mod names is based off the slab I'd/name (I forgot which)

I'm only here to report that (all?) vertical slabs from Create: Deco and Vertical Slabs Compat are duplicated.
I don't know if this is supposed to be like that, but I'm reporting it just in case. Also the recipes are duplicated.

Create: Deco vertical slabs:

Vertical Slabs Compat vertical slabs:

Duplicated recipes:

Forge 1.19.2

I'll remove the recipes, loot tables and JEI items with KubeJS, so I'm good for now :)