I tried to download and install 6.3.2 on my macbook pro. Failed their malware detection protocol. Went back to 6.2.8, same problem. They insist that they cannot verify the source/ownership of the software.
This has me dead in the water since I prefer your office suite to their offering.
Please take a look on https://blog.documentfoundation.org/blog/2019/10/22/libreoffice-and-macos-catalina/
*** This bug has been marked as a duplicate of bug 126409 ***