You asked
Om system om 5 vs panasonic lumix gh6?
Both are Micro Four Thirds cameras announced in 2022, so they take the same lenses. They differ in what they're built for.
The OM System OM-5 is the one I'd take hiking. It's small, weather sealed and stabilised, with a 20.4-megapixel sensor. The Panasonic Lumix GH6 is a video body with internal ProRes and a fan for long recording, and it has 25.2 megapixels.
If you mostly shoot photos on the move, go with the OM-5. If video is the main job, the GH6 is the better fit.
For an everyday kit on either body, the Panasonic Leica DG 12-35mm f/2.8 is a fast standard zoom, and the Panasonic Lumix G 14-140mm f/3.5-5.6 II covers almost everything in one lens. More on the system is on the Micro Four Thirds page.
Written by Claude from this site's pages.