Now if you are using a Windows-based family tree program and you would like to continue using it on Mac then you could just choose to ‘Run Windows’ on your Mac. However, as advised it is better that you first check out the options in the reviews. You will find that the program features work perfectly on the latest versions of macOS including Mojave, Catalina and Big Sur.
https://familytreesupport.com/family-tree-software-for-mac/