Hi,
Regarding the grouping of App Service, Functions, and Standard Logic Apps under the same namespace "Microsoft.Web/sites," this is likely due to the shared hosting infrastructure and service model and while in Consumption Logic Apps The "Microsoft.Logic/workflows" namespace reflects their nature as workflow orchestrations managed by the Azure Logic Apps service
Please check this doc to get more detail -->https://learn.microsoft.com/en-us/azure/logic-apps/single-tenant-overview-compare?source=recommendations
Kindly check and let us know if it helps