Pilot is king
To me it depends on:
I’m paying all the bills and you’re not working? You’re doing all the chores. We both work 40 hr weeks but I earn and contribute more? Close to a 50/50 split of chores. My partner works night shifts? I’ll do all the stuff that can only be done during the day.
I think unless your partner is unemployed you should both be doing some chores, but who does what depends on the circumstances.