Just to add a bit of additional info to this thread...
There is no official Canvas app for anything but iOS/iPadOS and Android. The app being discussed here is really just web browsers doing some what I'll call "trickery" to make something that appears like an app but is really just opening a special version of the browser to the Canvas website.
Personally, I wouldn't recommend this app method because if becomes very unclear what browser is being used, whether it's being updated, etc. The easiest way to access Canvas, again in my opinion, is to save it as a favorite in whatever your favorite web browser is. Again, this is just my own recommendation, and I know it will make things more complicated for some users. I think the most important thing for everyone to know is that Canvas is really a website/web service that can be accessed almost anywhere by a variety of devices as long as they are updated, have an internet connection, and a web browser.
Hope this helps a bit!
-Chris