Hello @Anthony Amodei how did you try deleting the web app?
You can try using the Azure CLI or REST API to delete the static web app. Here are the commands you can use:
- Azure CLI:
az staticwebapp delete --resource-group <resourcegroupname> --name <staticwebappName> --yes
- REST API: Static Sites-Delete Static Site
Also, if you have a workflow defined for your static web app in your GitHub repository, you should delete that workflow file as well
Hope that helps. Please let us know if you've further questions
-Grace