Under 14 CFR § 107.43, a remote pilot must not operate a small UA in a manner that interferes with operations and traffic patterns at which of these?

Why: 14 CFR § 107.43 states: "No person may operate a small unmanned aircraft in a manner that interferes with operations and traffic patterns at any airport, heliport, or seaplane base."

• Invents a towered-only limitation; § 107.43's text applies to "any airport," with no carve-out for non-towered fields.
• Confuses this rule with the separate § 107.41 ATC-authorization requirement for controlled airspace; § 107.43's interference prohibition applies regardless of airspace class.