Thanks to the one person who actually answered the questionI wouldn't work yourself up too much about it yet, as the forms for 2022 are not yet designed. If I got a 1099-K right now and had to deal with it in a return tomorrow it would be Schedule D (Capital Gain/Loss) in my instance.
In next year's forms there should hopefully be a provision for what someone has reported about you via a 1099-K process.