I have Canon gear including a 7D for sports and a bunch of lenses. A couple of years ago I bought the Fuji X-T1 for a smaller, lighter camera for walkabouts. I was delighted by the X-T1 and the Canon gear was relegated to sports and long lenses. I did shoot some triathlons with the X-T1 but the horse races required the 7D.
I bought the X-T2 with a vertical battery grip. I now find with the 24MP sensor and high frame rates with the VBG I haven't touched my Canon since. I've photographed high school football with the X-T2 and the 100-400 Fuji lens. I wish Fuji offered a faster long lens but I was able to get the job done. For landscapes and street I find the X-T2 a joy. Every iteration of these cameras feel like a major leap.
I am with you, just substitute Nikon for Canon in your post.