FLStudio for macOS was FLStudio 20 (May 2018)
You can download FLStudio for macOS and Windows from our FLStudio downloads page .
Purchasing FLStudio gives you a valid licence to use both macOS and Windows versions ...
FLStudio on the installer download page
If your system meets the minimum system requirements your actual system resources (memory, CPU speed) that will impose limits on your FLStudio projects. See here for more information on choosing good PC for FL ...
FLStudio to MacOS,
How difficult it will be to bring / port FLStudio to the new Macs with ARM CPUs?
Is Image-Line prepared for this, or will Mac Users with new Macs after the transitional period
are unable to use the Software ...