This page has a meta value
user-scalable=no that is meant for making it impossible to pinch-zoom this page. On the other hand, browsers are supposed not to support it, since it’s absolutely disastrous for accessibility. So the browser passes if you CAN pinch-zoom this page.
If pinch-zooming is disabled double-tap zooming is also disabled.
Android Chrome, Firefox, Edge, UC: zoom suppressed.
Android Samsung Internet: zoom not suppressed.
iPad Safari: zoom not suppressed
The same page, but now with