Unlikely in non-english languages (I seem to remember some super wide Arabic "single character" ones...?)

Last I’d checked, “﷽”is the widest Unicode character.

It's rendering visibly narrower than the big dash up thread for me, on FF on Android. (Maybe HN's stripping one or more of the combining chars though, so it's not actually showing what you meant in full?)

It depends on the font, of course. Some renditions look like regular Arabic text, others are much narrower: https://fonts.google.com/?preview.text=%EF%B7%BD&script=Arab

I fear for the children who had to memorize this.

It isn't a special letter or symbol in arabic, it's just a regular sentence that was added to unicode since it both holds symbolic meaning in islam and is used often enough to be useful. Some fonts render it like any other arabic, making it look like one big sentence as a single character, but others render it as calligraphy

Just found another way to make my designer panic. We're launching Arabic soon too!