You asked
How sharp is the fujifilm gf 63mm f 2 8 r wr?
I don't have a sharpness rating for the Fujifilm GF 63mm f/2.8 R WR, so I won't guess at one. What I can tell you is that it's a prime for Fujifilm's medium format (44 x 33) G mount. It frames like a 50mm on full frame, and f/2.8 gives roughly the depth of field of f/2.2 on that sensor. It has autofocus but no stabilisation, and it fits the GFX bodies from the GFX 50S through to the GFX100S II.
For how a wide aperture affects what stays sharp in your picture, see Portraits. For the full lens details, go to the Fujifilm GF 63mm f/2.8 R WR page.
Written by Claude from this site's pages.