Hope this post finds you well.
Be the outlet adaptor overloaded with connections or not, does not proved and useable circuit reference in your report, except to prove the breaker functions when overloaded says the home owner. Hear say at best.
Don’t operate or overload breakers.
I explain, 6 post outlet adaptors can be fire hazards, to any one attending.
They will likely be removed once the prospective seller vacates the home. If not toss them in the ben.
The same logic would apply if the home owner adding a 8 port manifold on the hose bib and say the water flow is low when operating 8 hoses for different water functions. Lol.
As for AFCI breakers, they run warm.