I saw this on MyHeritage today- Family Tree Builder Now Available for macOS Big Sur: https://blog.myheritage.com/2021/02/family-tree-builder-now-available-for-macos-big-sur/. Short article.
By Esther February 16, 2021
Once installed, the software will run directly on Mac computers.
We’re committed to helping MyHeritage users move forward with their family history research no matter which platform they feel most comfortable with.