I am very new to the XH2 but bought it mainly for macro, woth the 80mm.
I haven't got a flash yet but in sunny weather I habe been able to take some pretty great macro shots of flowers and insects. (Nothing pro-level, just happy the eyes are in focus and background looks o.k.)
There are howeverr a few points that strike out:The lack of traditional eyelets for a belt , means you can put the camera flat on a table on any side , maybe use the lens cap to prop it up and get 20, 40, etc second exposures on basically anything that you can get in its field of view.
I own a tripod and macro rail, but just putting the camera down on a table and get insanely detailed images of wear and marks on your keys is pretty cool. (And make for a pretty cool lock screen wallpaper)
I tried this with apples, pocket knives, candles etc. and have found a lot of joy in seeing so much detail in mundane objest without any specialized gear.
The other thing is that the 40 megapixels allows for insane cropping: you can crop a portrait oriented picture from a landscape photo en still end up with a 20-ish megapixel result.
The grip on the XH2 is also much nicer with the 80mm macro than the XT5.
The picture below is a tiny wasp like creature, perhaps 0.5 cm long, and this is a SOOC JPEG, with at most 5% saturation and maybe a bit of contrast added. (The litt.e bugger looked blue when I spotted it, but on camera this is what it actually looked like, this is a 20 is mp crop, the flower it sits on is about 1cm wide.)