In the context of my comment of having a free afternoon off - having my local environment messed up means that I'll need to spend my afternoon fixing it instead, whereas having Codespaces go down is essentially an announcement to the entire engineering team to go take the afternoon off as there's nothing we can do
So you're telling me that the next GitHub outage could take out my dev environment and give me an afternoon off? Time to convince management that we need to switch to Codespaces!
I believe that in this case it's simply convenience/laziness to have a single notifications codebase across both operating systems? That and Windows didn't have native notifications when it was first developed. Not that it excuses a big chat application from MS behaving this way, just saying that they probably didn't deliberately choose to re-implement notifications just because they didn't like the OS ones.
I'm building a web app to play an icon clicking/hunting game based on Dota 2. It has been pretty fun working with Web RTC and web sockets, as well as doing some cool stuff with React hooks and PWAs, and I'm planning on "releasing" it soon.