Hello,
As we know in the approval email there is more text than we want.
Here the text in the box is not from the users side.Its from the flow only.But if anyone wants to remove this text they cant.
Aslo we need to remove the line below 'Request your input' text
So please make it possible so that we can use this flow as we want.
You can now disable the built in email and thus send out a fully customized email with any content you want and buttons / links or whatever presination that can take the user to the approval center. Read more about that here: https://flow.microsoft.com/blog/2019-release-wave-2-plan-and-may-updates-for-microsoft-flow/