Hello! Today I've made a simple data pack. It adds 16 stone cutter recipes there's list of it:
Oak - stairs/2slabs
Dark Oak - stairs/2slabs
Birch - stairs/2slabs
Jungle - stairs/2slabs
Acacia - stairs/2slabs
Spruce - stairs/2slabs
Warped - stairs/2slabs
Crimson - stairs/2slabs

I think this data pack is actually on planetmc but I've made this cause I want to my profile got some vanilla addons.
Leave a diamond ;)
If Mojang would add new wood I'll update this data pack