Hi. I'm Brian and I will do my best to help you.
I have a completely up to date Chromebook. When I search for Edge, the Play Store tells me it isn't available for a Chromebook. Edge isn't supported on a Chromebook. In order to install it on a Chromebook, you must enable Linux apps on the Chromebook and then you can install the Linux version of Edge. Here's how: https://www.xda-developers.com/how-to-install-m...
Note that the web site I referenced isn't a Microsoft web site but it appears to contain accurate information and no potentially unwanted apps. It may, however, contain ads and use cookies, so be aware.