https://wccftech.com/horizon-zero-dawn-pc-microsoft-flight-simulator-2020-to-support-nvidias-ansel-and-freestyle/

Ever since NVIDIA introduced the powerful Ansel 'photo mode' and the Freestyle game filter that lets you add multiple types of filters to your game in real-time, both have been very popular among GeForce users.

NVIDIA has therefore worked hard to enhance compatibility for both Ansel and Freestyle, and the latest GeForce Experience release (version 3.20.4) added official support for thirty-nine games including two highly anticipated ones, Horizon Zero Dawn's PC release and Microsoft Flight Simulator 2020.