I'm having a problem related with the comments an approver made over an Approval request (the Approval actions just get 1 response), then the comments are being sent by the Outlook for the requestor to let him know about the comments of his request, but even if the comments had more than one line break, it doesn't matter, the line break is never shown in the Outlook mail.
This is my test flow:
As you can see when the flow is triggered, the comments made look like this:
Each line break converts into "\n".
Sending the email changing each "\n" for <bt> with an expression or not, it doesn't care, the line break is never shown in the Outlook message, even if it looks like it works in the flow.