I use m43, Fuji, and Nikon Z7 and love them all. I used to want a Fuji medium format, but it would only be for landscape and I am so happy with my Z7 and Z lenses for landscape that I no longer lust for a medium format.
Interesting! The same happened to me with the Z 7 II - it's all I can wish for in high-resolution camera; it put an end to my considering the Q2 or GFX100S (or Sony A7R IV - but that wasn't a real contener, to be honest).
I use 1" (Nikon),

(Olympus, Panasonic), APS-C (Canon, Fujifilm, Nikon, Ricoh), APS-H (Leica M8) and FF (Leica, Nikon). However, my sweet spot definitely is FF. Why? Because it can do everything smaller formats can do - but not vice versa (I use shallow DoF a lot); mirrorless have made FF manageable and portable, too.
But ... I still love the fact that the E-M5 III with 12-45mm holds its own against the Z 6 with 24-120mm in many ways - at half the size and less than two thirds of the weight. 90% overall performance while saving this much bulk? Count me in any time!
Anyhow, my usual EDC choices have been APS-C for a while now (with Nikon Z ousting Fujifilm as we speak - even though I still think the X-E3 is a very nice camera). As compromises go, I quite adore APS-C. But, again, in bad weather, the E-M5 III combo tends to take over the EDC bag ... It's definitely the "no worries" choice.
Bottom line? They all have their merits, and depending on your preferences, smaller sensors may even win. If, that is, the cameras containing them offer a compelling package.
M.