No, occasional V2L use is not expected to noticeably affect battery lifespan.

V2L is an official, manufacturer-supported feature, and the car manages it the same way it manages charging. The battery management system handles thermal load and cuts power automatically when the state of charge drops below a preset threshold, usually 15 to 20%. All battery cycling contributes some degradation over time, but occasional low-power V2L use is negligible in practice.