Panasonic released an official statement about the Panasonic GH5 autofocus controversy.
“We recommend to select 1-area AF in 30p or 60p frame rate for more comfortable Auto Focus speed. When you select 24p, 1-area AF is recommended.
If you are still experiencing slower than desired AF, Panasonic suggests to override AF by pressing the shutter button halfway down.
Panasonic pledges to further improve the AF quality.”
Panasonic GH5: B&H Photo / Amazon / Adorama
Panasonic GH5 Film Maker Kit: B&H Photo