I’m reading trhough the documentation (https://learn.microsoft.com/en-us/azure/azure-functions/functions-premium-plan?tabs=portal) and looking at the benefits of Premium

Premium plan hosting provides the following benefits to your functions:

• Avoid cold starts with warm instances.
• Virtual network connectivity.
• Supports longer runtime durations.
• Choice of Premium instance sizes.
• More predictable pricing, compared with the Consumption plan.
• High-density app allocation for plans with multiple function apps.
• Supports Linux container deployments.

All of these benefits should be for App Service Plan as well. What is the diff and when should I use one over the other?