This video explains the steps to change the from email address of email notification with in Power Automate(MS Flow).
Two option have been explained to change the from address
_api/SP.Utilities.Utility.SendEmail
application/json;odata=nometadata
{
'properties':
{
'To':['krishan.sharma@ximit.onmicrosoft.com'],
'Subject':"NewMail",
'Body':"NewBody"
}
}
