The site recommends [https://www.privacyguides.org/encryption/#veracrypt-disk] Veracrypt on desktop including MacOS but it requires installing a system kernel extension on Mac. Surely that could be harmful for security and there may be better alternatives for mac?
There is a macos option listed on that same page for MacOS that is already built in. Just use it if you are
https://www.privacyguides.org/encryption/#filevault