The left-side browser now has a macOS-native search bar. You can find samples, presets, and projects instantly. It also supports aliases (shortcuts) to folders anywhere on your Mac—including external SSDs.
If you are on macOS Monterey, Ventura, or Sonoma, build 1574 is arguably the most reliable pre-FL Studio 21 version available. FL Studio Producer Edition For Mac 20.8.3.1574
: macOS 10.15 (Catalina) or higher (Big Sur and Monterey were also supported at release). The left-side browser now has a macOS-native search bar