The hack provided here works like a charm on Chromium: https://support.google.com/chrome/thread/8721521?msgid=10849294
tested with: Chromium Version 80.0.3987.87 (Official Build) Built on UbuntuUbuntu and Axon.ivy 8.0 LTS
<script type = "text/javascript" > history.pushState(null, null, location.href); history.back(); history.forward(); window.onpopstate = function () { history.go(1); }; </script>
If added this in my main layout xhtml and now the back button is no longer doing any harm in any of my dialogs.