For me, it was perhaps simple-scan, a very simple and efficient GUI to scan documents. I used it with my Brother printer / scanner and it works like a charm. Especially since I do not scan stuff often, so a program with more complex UI would have the effect that I forget how to use it until the next time.
That’s not been my experience. It may be using a web view under the hood, but the functionality is quite different. Additional features, breaking the video call out of the primary pane, etc. To suggest that they’re essentially the same is not accurate.
I see literally no difference between the Windows, Mac, and Linux versions except 2 shortcomings on Linux: