If you're looking for a specific "patch" in the context of synthesizers within FL Studio, you'd usually find it within the plugin's preset library or by creating your own by adjusting parameters.
For a complete breakdown of every technical tweak, you can view the official release notes or the What's New change log at . FL Studio 20.8.4 LATEST RELEASE (16 September 2021) fl studio 20.8.4 patch
A new special effect for creating metallic, dissonant, ring modulation, and phasing effects. It is included for free in the Producer Edition and higher. 3x Osc Enhancement: If you're looking for a specific "patch" in