I usually charge between% 20-80.
Same here.
Like other folks in this thread, I too have a few different chargers:
* 5W charger which charges my phone the majority of the time (ie when I'm lounging around home, or at my work desk).
* 20W faster charger (non apple branded charger) for times when I'm in a rush.
I'd love it if Apple introduced a feature where you could manually limit the phone's charge (ie max 85%), no different to many laptops...
There's probably a "shortcut" I could setup to get this enabled, but haven't looked into it to be honest...