I have an app that plays music. Sometimes I get asked to do a screen recording of the app, as the reviewer doesn’t have any music on the device. This one time

I have an app that plays music. Sometimes I get asked to do a screen recording of the app, as the reviewer doesn’t have any music on the device. This one time I did this, but they saw me launch the app from TestFlight. They told me I had to record it on a real device and not a simulator. You can’t get TestFlight on the simulator, so they don’t even know their own tools. Would not believe me. Ended up recording my physical phone before they would believe me.