I'm swinging between a G80 and XH1 atm, there's definite pros and cons to both and I can't decide which I prefer over all tbh. The G80 [same sensor as your GX80] has the superior IBIS, it has the clearer screen in strong lighting, a much, much better touch screen implementation and I find it much better for macro and the odd bit of wildlife I do. It's a much easier camera to control in general the layout is just great! whereas the Fuji is better in low light, you get cleaner files at higher ISO and I am a fan of that 'Fuji look'. The H1 is also built like a tank, and I have to admit I like a chunky camera, not dsle chunky but somewhere in between and it's got that covered. It's not the M43 killer I expected though, so I have to really think on where I go from here. The plan was to trade the G80 in for Fuji lenses if I was happy, but the H1 has some niggles that frustrate me, the touch screen is a bit cack tbh but it does have that nice joystick, first camera I've owned with one in fact and I am liking that. The other option I had strongly though on was a G9, that thing is a G80 on steroids

and I know I would love it ... But ... the Fuji lure was always going to be there., it had to be done. I will give it a few months and see what I want for certain, I may well grow to love it. I think the G80 actually spoiled me a bit, as it is so easy to get along with. BUT, when I look through my old images, my instant favorites are ones I shot with the XT1 and Xpro1, maybe it was a more creative period for me, but those are the images I always come back to - it's just been a while since I used Fuji gear.
I see you're enjoying that Sigma 60 2.8 btw
I had that lens for a bit, IQ is insane for the money. I used it as a pseudo macro too with a Raynox slapped on front, worked out pretty good I was getting a little better than 1:2 magnification