You asked
Is the fujifilm gf 19 35mm t3 5 pz ois wr good for vlogging?
Not really. The GF 19-35mm is a wide zoom, and on Fujifilm's medium format it frames like 15-28mm on full frame, so the focal range suits vlogging. The problem is the rest of the setup. It's a cinema power zoom built for the GFX bodies, which are studio and landscape cameras, not vlogging ones.
My vlogging guide starts with a flip-out screen, a wide lens around 16-20mm full-frame equivalent, a microphone input, and light weight. A GFX body with this lens misses most of that. The lens fits the GFX100 II and the GFX 50S II, but for vlogging I'd look at a small camera with a wide lens instead.
Written by Claude from this site's pages.