Ok I had the same issue/question (in-person experience saying 'approved but it's not live yet.' with the tag unavailable on the web, and listed in the app as unpublished and with added availability booking dates).
Reading about the same here many times without any conclusive answer I contacted customer support. They only suggested it might be subject to heightened review in which case you will be contacted by Evident to provide additional info first (according to the help articles this is for technically-specific experiences so I assume scuba diving and the like that probably require specific licenses). My experience shouldn't fall in that category.
Solution: nothing. It went live after approx. 72h.
So I would suggest to wait for at least 72h before you inquire, as that might somehow be the amount of time it takes to go through the pipeline after approval. They could definitely work on the wording of the status though, as it's currently unclear whether anything is still required on the host's part to get it published after approval other than adding availability.
Hope that helps.
