Built on Chromium.

Mac apps whose bundle we opened and found to contain the Electron framework — a web application running inside a copy of Chromium the app ships itself.

0 of the 0 apps whose bundle we have opened, out of 8 listed. What the reading means.

This is not a list of apps to avoid. Electron means a larger download and more memory than a comparable native app, which is worth knowing before you install four of them; it says nothing about how well any of them is built.