I’ve had to use Office a lot professionally and I have to say you do get to learn its quirks over time if you’re stubborn enough to figure out what triggers each unexpected behavior. Ironically learning LaTeX really helped me figure out what’s happening internally in Word in some of those situations, just understanding how the breaks and spaces might be stored gives you a little extra insight.

AFAIK you can do something similar to what you’re describing in outline mode but I could be completely misremembering.

All the Office suite is bloated but LibreOffice still feels a long way off.