We started to do the same at Rainway over a year ago https://blog.rainway.io/play-overwatch-and-anything-else-in-...
We are big fans of web-based real-time streaming so if you want to read more: https://blog.rainway.io/the-art-of-pivoting-how-we-built-rai...
Excited to see how you develop this!
EDIT: A quick correction for your blog -- the MSE low delay rendering was not added for Project Stream, it has been there since 2015 and is triggered via heuristics.