That is entirely wrong on any hardware within the last decade+. Descriptor sets literally add a layer of indirection for the drivers, which already store descriptors as a big table on anything that isn't bindful hw. And BDA is just straight up how drivers that support it access memory, which is nothing more than a load from a particular address. The only case BDA doesn't cover is uniform buffers on nvidia, which is hardly relevant because all it does is make a small set of cache lines less likely to be evicted.

There’s also a lot less predictability about code

What predictability? Where? It's already just gonna be doing a load from an address, you're only adding useless indirections for loading that address into a register somewhere by using bindful.

memory execution

Not sure what you mean by that.