USAmerican here.

Business accounts usually have better uptime because that might mean money lost.

Some business ISP agreements have in them that they will give you money back if your internet is down over the rate they mentioned.

Home user agreements basically say they can cut your internet if they choose to do so for any reason.

Also business accounts can ask for a static IP address.

I don’t actually know any consumer laws that protect home users more than business users. Which laws are you referring to?