Why a browser? My processed images aren't SRGB anyway. Go full res and "save as" and view in whatever viewer you want.
If we all go "full res", then most images will not fit on a monitor screen at full res, regardless of the viewer you use, unless the viewer is down-resing to fit on the screen, which will lose some detail anyway.
I'm happy to provide files at whatever size the team agrees on. If it's full res, then I would not apply any output sharpening.
We should probably decide on a common color space for the processed file, too. Since most of us are likely to be viewing them only on-screen, sRGB seems to me to make sense, although I will do all earlier processing in Prophoto, 16-bit.
I guess the ground rules need a bit more clarifying.