Microsoft Edge Read Aloud Feature Not Working with eLearning Courses

I've just been doing some accessibility testing and Microsoft Edge Read Aloud feature does not appear to be compatible with Articulate Storyline, though it works fine with Rise 360. I think this is really disappointing as Articulate is one of the biggest providers of eAuthoring tools and Microsoft is one of the biggest providers of online browsers. I know there are workarounds like using text to speech buttons, but that is a huge amount of extra work for the developer, especially if you have a large existing library of Articulate content.  It's also not intuitive for learners who know they can use this feature for most other online content. I'd be interested to understand if Articulate are working with Microsoft on this at all.