I do. As others have said, it's built well and feels smoother to use than the site does.

Note that this is not an issue of speed, wikipedia in the browser is plenty fast. It's smoothness — the app's navigation model is better adapted to the use case, it's themed to match the OS perfectly, and there's no extraneous browser chrome or other little browserisms dragging down the experience.

If the iPad version got a Mac Catalyst port I'd probably use that on the desktop too.