The free clip browser app from Sony, "Catalyst Browse 2017" can open 10-bit GH5 files and transcode them to a different format.
I use Catalyst Browse to transcode my GH5 files to Sony XAVC Intra formats which I can then open with several different NLEs.
So far I've had success with : Sony Vegas Pro 13, MAGIX Vegas Pro 14, and Da Vinci Resolve 12.5 ( I expect this will also work with Adobe Premiere too )
I use Catalyst Browse to transcode my GH5 files to Sony XAVC Intra formats which I can then open with several different NLEs.
So far I've had success with : Sony Vegas Pro 13, MAGIX Vegas Pro 14, and Da Vinci Resolve 12.5 ( I expect this will also work with Adobe Premiere too )