If you’re referring specifically to the root/apex domain (no subdomain), this would also need to be added to the service custom domains. Wildcards do not cover root/apex domains.
My last comment applies. The wildcard seems set up correctly, if you want it to respond to just https://internal-prawephecy-dev.com, you’ll need to add internal-prawephecy-dev.com as a custom domain to the service.
Post addition, all domain entries have gone into Certificate Pending status. I raised a ticket yesterday to get the Certificate Pending issue resolved. Looks like all three static sites with this new change have gone into Certificate Pending status.
The www entry may show “Pending”, I think that’s a minor display-only bug due to the overlap of the wildcard certificate covering that subdomain. We’ve got that noted to fix.