80% limit, ok to leave charging overnight?

Now that there is a 80% fixed limit, I've never liked leaving my phone charging overnight, is it ok to just leave it plugged in overnight now so I get the full 80% on wake up?

I like the idea of the 80% limit and I know some love it, some hate it, but to me there must be something in it, if big tech companies are giving options and info on this, must be researched.