Is your feature request related to a problem? Please describe.
In Minecraft 1.13 and up, Mojang started to make hitboxes actually resemble the block model - think of how chests used to be full blocks, but are not anymore. Therefore, I'd love to see those kinds of hitboxes arrive in Ex Nihilo as well.

Describe the solution you'd like
I think the solution is obvious. The "empty" spaces of a model should correspond with the hitbox. For some blocks, e.g. the Crucible, vanilla hitboxes could be reused (cauldron in this case), while others would need to be done from scratch.

Describe alternatives you've considered
Well... the alternative is just to continue using the normal block hitbox? I guess?

Additional context
If you don't have the time, I'd be willing to do this on my own and PR it in. I'd just wanna get your approval before I start.

Ah, alright. I wasn't aware that new models are coming in the first place.

new assets & models are coming soon

New models arent in the game yet,hitboxes will be optimized when new models are in the mod

this one should be fixed in 1.19, just need some confirmation