For example, thèta.com might be a French fighter jet company, while théta.com could be very easily confused as the same thing, especially to non-French speakers. So I think registering that weird version of google.com should never have been possible, since the Gs could obviously be confused by a layman.
Also, in general I think web browsers need to be more machine learning backed. The browser should warn you when you're about to do something dumb or when you're reading lie-based propaganda. We're trying to teach laymen to be intelligent enough to check for HTTPS and to be discerning enough to figure out what news is false, but I don't think a majority of our population is able to do so.