Yes, for Chinese & Japanese, not breaking words is nice, but not always practical. Maybe if you’re writing a speech, so as not to mispronounce the word in the 5% of cases when that happens. The CSS line-break property pretty much sums up the actual rules. Some apps do ship a dictionary to allow for double-click selection of words. They don’t always get it right, though.

> That graphic of the Indic glyph is very interesting! Definitely explains why shaping is so complex for those scripts!

So _this_ must be why the Affinity suite doesn't properly render Devanagari, yet Inkscape can.