The best way to get the "full" experience of FL Studio 20.7.2 or any version is to purchase it legally. Image-Line's official trial version is fully functional and allows you to use all features and save your projects. The only catch is that you cannot reopen saved projects until you purchase a license.
A major leap that allowed for deeper hardware integration.
No, this is a specific version from August 2020. Image-Line has since released several major updates (FL Studio 21, 24, and beyond). If you purchase a license today, you will get the latest version and all future updates for free.