Go to Advanced parameters (in blue), select Requestor (in red) and then you can add a requestor different from yourself. Since you want to pass a dynamic content (Form submitter email), click in Switch to Advanced Mode and add the property:
In the example above, I set Flows Test as the requestor, and this is how the approval request looks like in my Teams:
I'm also sharing a few contents related to the topics discussed here, which may be helpful for you or other users that find this thread in the future:
Let me know if it works for you or if you need any additional help!
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