Slack, too. Slack has a perfectly good workspace sidebar in their web app, but they hide it unless you're on a Chromebook (where you can't install their native app).
Depends on your Chromebook, I have a Acer R13 and it's installed and running (just checked it). Android app's don't have a designated "runs on Chromebook" Flag as far I know, so you can't really block it.
But Chromebooks are sometimes a little bit special. I'm working on a app right now which is designed for tablets and wanted to check if I could run it on my Chromebook, because of the bigger screen (13" compared to Samsung S5/S6 with ~10") and I couldn't install it from the alpha channel. The thing was, it has a camera, a front camera, but the Manifest.xml required the default camera permission which was missing and this prevented me from even finding the app in the PlayStore.
And Slack as app is basically only the website. All the "native" apps seem to just render it (Linux, MacOs and Windows are Electron apps, the Android version feels like a WebView)
