About the card, Formatting the card (initialization), P33) – Panasonic Lumix DMC-G7 body User Manual

Lumix G7 Mirrorless Camera with 14-42mm and 45-150mm Lenses (Black), Lumix G7 Mirrorless Camera with 14-42mm Lens Deluxe Kit (Silver), Lumix G7 Mirrorless Camera with 14-42mm Lens (Silver), Lumix G85 Mirrorless Camera with 12-60mm Lens, Lumix DMC-G85M, Lumix DMC-G85, Lumix GH5, Lumix GX80, Lumix GX85 Mirrorless Camera with 12-32mm and 45-150mm Lenses, Lumix GX8