Trying to look at some of Brian Teeman's "Hidden Secrets" secrets (at
https://www.hiddenjoomlasecrets.com/), I found impossible to get past its home page with the Chrome based desktop browsers Vivaldi or Edge – but it worked fine with Firefox. Tried on different PCs, Windows 10 and 11.
Then, noticing that it works fine on Vivaldi or Edge on Android, I went back to desktop and narrowed the browser window as if for mobile – behold, that way it worked, via the ≡ mobile menu.
What's the secret ? (assuming that web site to be Joomla! based

)