This is official Microsoft announce:
This setting is discontinued and will be ignored on client devices, as of the August 2020 (version 4.18.2007.8) update to Microsoft Defender Antivirus.
Setting this value to true will not change Microsoft Defender Antivirus behavior on client devices. This applies both to managed clients (E3 and E5) and to unmanaged devices (home and pro SKU). Servers are excepted from this change.
I wonder how will other security companys respond on this Microsoft move. True, Defender is very good program but now others will lose a lot money and I don't think Avira, Kaspersky and other companys will just watch that in piece.






