Wifi drops when using high-bandwidth mobile apps, router or network setting?

Hi everyone, quick question.

I’ve noticed that my home wifi becomes unstable when using heavier mobile apps, especially things like a mobile video editor tool, that uploads or processes files in the background. Other devices start buffering or briefly disconnect even though the signal strength looks fine.

Could this be related to QoS settings, bandwidth allocation, or firmware behavior on netgear routers? Curious what others usually check first when certain apps seem to overload the network.