>>4215511if your major rqmts are a small pocket camera, 28mm equiv 2.8 lens, good menu customization options, then gr3. its a niche camera. drawback is no built-in evf, tilt screen, single focal length (but you can crop the image to mimmick longer focal lengths), only if all these mattter to the user. also, no easy option to clean sensor dust if one gets unlucky (need to disassemble) or just erase the dust when post processing the photo in another software.
if not, then a small apsc ilc camera will do, the benefit is having evf, tilt screen, at least there are a few small lenses to choose from (native or adapted), easy sensor cleaning. the drawback is that it's bigger (body + lens) than the gr3.