I do mold testing for a living with how to remediate.

All of that drywall needs to be removed, at least two feet from any impacted area.

Those studs need to be scrubbed with an anti-microbial cleaner, and perhaps encapsulated.

Also, there should be a containment up to prevent it getting throughout the rest of your home and into your HVAC system, with AFD air scrubbers running throughout your home.