Really struggling to get Evee AO working in Browser

In the tutorial for the swiss army knife you show ambient occlusion applied on the object mapping level.

This is fine for a product where I can spend time creating maps for every aspect of one model. However, the scenes I am building involve hundreds of objects, all with procedural textures and in Evee in Blender it looks nice because the AO puts some shading around the base of objects that are sitting on other objects. But when I click sneek preview it just looks awful because none of the Eevee AO comes across.

I’ve spent the day trying every setting and can’t get this to work. Does Eevee AO just not work in Verge?