And here is what it looks like on my Windows 11 machine, in Firefox:
It plays, but sound only (common occurrence with MOV files on machines that don't have the required codec)
However, on Chrome:
Testing locally, and mov 'works' in all browsers (displays the player) however Chrome initially shows a player, but then it disappears and defaults back to what you see.
Interesting - the page source contains the correct html but when inspecting the element, the html is missing the <video tag.
Digging into this one.