Is it okay to run barefoot on a private treadmill?

I did some googling but didn’t find anything conclusive. The links I saw seemed divided on the idea. So what says the collective? Is it okay? Obviously it would be gross to do it on a public treadmill at the gym. But what about one at home? I am wondering in terms of the amount of stress placed on the feet (not about hygiene). Please don’t give me just a yes/no answer, I want to know your reasoning behind it!

Thanks!!

I own shoes, I just happen to be at someone else’s house and I want to use their treadmill and that got me thinking about this question.