You asked
Is the sony fe 70 200mm f 4 g oss good on aps c?
Yes, I think it works well on APS-C. On a Sony APS-C body it frames like 105-300mm on full frame, and f/4 gives about the depth of field of f/6, which is plenty for most daylight shooting. It's stabilised and autofocuses, and it fits every APS-C Sony E body listed on its page, from the a6000 through the a6700 and ZV-E10 II.
It's a good pick if you shoot sport from the sideline, animals, or distant detail. For more reach, the wildlife and sport page explains why a long zoom suits APS-C. For tighter headshots with more background blur, look at the portrait lens guide. For wider scenes, see the landscape lens guide.
Written by Claude from this site's pages.