If windows are very dirty, is there sense to use traditional and then use WFP to follow up the traditional wash?

Hi All! I'm curious how you handle heavy furniture, like beds, couches, and plants, that block interior window access? Same question for deep bay windows over kitchen sinks with multiple panes of glass in all directions. I can't imagine we would climb on their countertop, and a pole seems challenging with all the angles. ChatGPT says you should never move or climb on a customers furniture or countertops because it opens you up to liability and many insurers don't allow it (damaged floors, furniture, surfaces, hurting yourself, etc.). I'm putting it into my T&C's that customer must clear access and open blinds to any interior windows they want cleaned and will mention that to the client ahead of time. I'm curious what you do?

I thought I heard or read someone mentioning a national insurance company. If so, please share said info. In advance, thank you!