Thank you for looking into this function and I hope it can added to the New Outlook.
As some one with dyslexia, all I need is to listen to emails to make it easier to read through emails and as I proof read to be able to listen and catch missed or flipped words. Simply Read Aloud is all that I need and I am sure that I am not the only person who benefits from this function.
With that said I appreciate that there is Immersive Reader because I am sure there are many people who can benefit from it too but it is too intense for my needs. There are extra steps to get to it, where with the old Outlook Read Aloud is on the top of the composition page. The default settings in Immersive Reader are unreadable for me (fonts are too large and too much spacing for what I need), and because I can't figure out how to change the default settings to something that is more easily readable, its so burdensome to have to change the settings for every email. With extra time and effort, I don't want to use it.
Outside of the basic functions for composing, reading, sending and organizing emails, Read Aloud is elemental to my use and ease of using the old Outlook. Without Read Aloud, the New Outlook is a frustrating experience and I will be returning to the old Outlook.
Happy to try New Outlook again if simple access to the Read Aloud function is there.