Thanks, I'll do some more testing on mobile and see if I can reproduce it.
Seems fine on my end in Edge, Brave and Vivaldi on Android..... but the 'site isn't safe' message you mention could be the culprit, as that will likely block the site from loading javascript which powers a lot of the popups/menus etc. Are you able to grab a screenshot when you get this message next? Particularly if it has any sort of "more info" "details" or similar options.