Found this March 2021 online document regarding Ebay subject:

Starting next year, the federal threshold for issuing the 1099-K will drop to $600 with no minimum transaction level, due to a provision in the recently enacted American Rescue Plan Act. (Some states already have lower minimums.)

This means that in early 2023, you could receive a 1099-K for online sales you make in 2022. And this would be the case whether you’re an occasional seller or are operating as a business, as long as you sold more than $600 worth on a single platform. It doesn’t necessarily mean you’d be taxed on the money, but you would need to account for it on your tax return.