Hybrid Overheating: When does it really matter?

Hey everyone,

I'm Terrence, a DIT, and something I hear a lot is that hybrid cameras can overheat during long takes. It's often mentioned as a reason to opt for a dedicated cinema camera. On our last project, we were shooting a documentary using a couple of FX3s, and while we had some longer interviews, we never hit an overheating wall. We usually record ProRes to external recorders with our ALEXA Mini or V-RAPTOR XL setups, so I'm used to those robust systems.

I'm trying to understand in what specific, real-world shooting scenarios this 'overheating' limitation becomes a critical deal-breaker. Is it continuous takes longer than 30-40 minutes? Certain resolutions or frame rates? Are there specific project types (like live events, theatre, or unscripted reality) where an FX3 or even a C300 Mark III just won't cut it, and you absolutely need something like an ALEXA 35 or VENICE 2? I'm genuinely trying to pinpoint when this limitation shifts from an inconvenience to a necessity for a full-blown cinema rig.