It looks like it's a lot broader than just the Online Store, although it doesn't mention Payments specifically.

Still, "any associated products and services" sure seems like it would cover Payments as well? What's the dividing line for a product that's associated with the Online Store?

EDIT: This specific clause is listed under section 3 "Online Store", so it does seem likely to me that it's not meant to apply across the entire TOS.

Still a weird restriction for the online store, but given that there's also a non-disparagement clause right under it, it's certainly not the most egregious thing in this license.