Adding a Feature Report to a flow is very easy these days! And given that you are essentially using the email as a Feature Report, swapping to a proper Feature Report (which you can pdf) is likely the best approach.
Are you on AGO or Enterprise? There is a slight difference depending on which environment you are in.
I will refer you to my Power Automate guide. The guide walks you through each step of a more complex flow. It is appropriate for both Enterprise and AGO and has some good tips. It may be more in-depth than you need at this time, but it also links to other guides (including Esri's basic Create Report guide).