What if your laptop is broken? You should be restricted from getting a job? What about if you just landed in the US and didn't want to have to present it to the authorities to scan and plan on buying a new one because they are cheaper there. What about if a family member was currently using it. There are plenty of valid reasons why you might not have a laptop in general or at the moment in your life.
If a candidate reached out claiming they didn’t have a machine to interview with, I’d gladly find another path forward. But I imagine that’s a small minority in this industry.
It wouldn’t stop them from being hired.
Then you should find a way around it. If an applicant can't even manage to get a laptop for a few hours I rather hire someone else.
In extreme cases we can work it out but you should have something that makes up for the extra annoyance compared to 99% of applicants.