What is new in macOS 11.0 (Big Sur)?
As of 11.0.1 the command to partial disable SIP is brokencsrutil enable --without fs --without debug
The critical --without debug parameter is not functioning for unknown reasons.
For now simply fully disable SIP with the command csrutil disable
This info is relevant for cDock, MacForge, DarkBoot and any of our other products that require modifications to System Integrity Protection in order to function.
If you already had set SIP to be partially disabled in a previous version of macOS and upgrade in place you shouldn't need to change anything.