If I spend ££££ on a holiday let I make sure it has a dishwasher because one of the things I don't wish to spend my holiday doing is washing up. I expect there to be the wherewithall to use said dishwasher, including tablets/detergent. It's not like shampoo; it's to look after the house property not my body. If there's no detergent I'll do my best with a hot wash. I will not be doing a 14 mile round trip on busy country lanes to the nearest shop that stocks detergent, specially if I'm only there for a few days.
If the owner's margins are so tight that providing basics to look after the property is too expensive, I suggest they just add £5. That will easily cover a dishwasher tablet per day, two toilet rolls per toilet, at least half a bottle of washing up liquid, a scourer, a jaycloth, some bathroom cleaner and a couple of bin bags. What they don't provide I shan't use, so if there's no loo brush and cleaner any skids will remain, if there's no toilet paper I shall have to use tissues until I can get some paper without a long expedition to do so. If there's no broom, dushpan and brush or Hoover there will be sand and crumbs on the floor. If there's no dishwasher tablet the dishes will have been washed without one. If there are no bin bags I will leave the unemptied bins tidily in a cluster.
I'm very grateful if salt, pepper and some cooking oil are provided. A carton of milk is also much appreciated. Tea, coffee, nice biscuits, wine are nice, but I would never expect them, or even hope for them.
I'm happy to co-operate and strip the beds, put on the dishwasher, throw out unused food and so on, but if you want me and my family out by 9am there's a limit to how much I'm prepared to do. I don't buy the 'extra cleaning for Covid' line as I would very much hope that there was a standard of cleaning before Covid that would prevent passing pathogens between renters.