Panasonic GH4 audio tests with cheap mics

Today I went home from work early while we wait for the results of a covid19 test that an associate has taken - can’t be too careful. Anyway I had asked a question on a facebook group about what kind of sound I can get from the built in mic of my Panasonic GH4. Of course there were several blanket statements like “any external mic is better than the built in mic” but some tests proved that the GH4 has really good sound without any help - as long as there is no wind.