Should wool slabs block vibrations?

They do, according to the java changelog

I feel like it depends. If you're eating something, it should pick up the vibration since it'd be coming from higher up, but it shouldn't pick up footsteps since they're lower. Assuming only one is possible, I'd have them block all vibrations.

No

No not from that angle

No because they're short. I think it adds some diversity with vibrations

If wool carpet can, I think it’s fair enough to assume slabs and stairs should as well.

should be the same as if you walk on a slab behing a wool block

Yeah totally 💯 As usual, bedrock will get the wool occlusion mechanic much later than java 🙄

Is this not on preview and beta? Because I don’t have the option to turn on this experiment.

Yes

Where's smooth stone stairs though?