Hi @Sfredette, I see all of the channels under 'M' in my all applications section of my Start Menu.
They also show up for me if I type Edge in the Search box.
I am running version 1809 (Build 17763.678) when I did these tests. I also have a computer on 1903, which works too. Can you please retry these steps? If you still do not see Microsoft Edge show up, please let me know and we can dig in more. Thanks - Elliot