You should never, never, never have to disable SIP to get Fusion to work. If you do, IMO you have something else wrong with your system.
Have you tried upgrading to the latest Monterey 12.5 release? There are important security fixes in that release, and anecdotal evidence of some things fixed by Apple that they may have broken in prior releases.
- Paul (Technogeezer)
Editor of the Unofficial Fusion Companion Guides
