Staying in a cottage booked through one of the large companies. I use a lot of air bnb and it's standard to leave the place as you found it which I always do.
In a holiday place booked through a company I clean the sink/loo, rinse bath, make sure fridge and bins emptied, wipe down kitchen surfaces. I assume they have professional cleaners coming in who will do a thorough job.
This morning got email from the holiday company with a long list of jobs including stripping beds, mopping through, cleaning shower, basically "leave it spotless". Is that now expected?