[UNOFFICIAL BUILD] Samsung Galaxy A51 (a51) for /e/OS-T

May be someone can help me with the planning of installation eOS. In
https://community.e.foundation/t/howto-an-unified-install-guide-project-for-e/36234
is written

Download and flash multidisabler-samsung-3.* 4 zip to disable security and encryption

How do I have to do that?
And next question, is no vbmeta… necessary?