[SNIP]
I tell you what.... Let's have a party at my place and gather around my new 6K Dell pro 32 inch 6K monitor that is perfectly color calibrated and will knock your eyeballs out. Let's look at highly detailed, perfectly exposed shots at full 100% resolution from the newest iPhone or Pixel, an MFT camera, a Fuji APSC camara, a Q2 (or any top-end FF camera) and then a 100 MP GFX file.
Then you guys all decide if there is any difference. Trust me. There is.
I don't disagree with any of this, but I think we're talking about two different things. You're talking about sensor size, and I fully agree that sensor size can make a difference. A Leica M camera will have a larger shooting envelope than an MFT camera, the same way a Fuji GFX camera will have a larger shooting envelope than a Leica M.
My original point was directed at the comparison the OP was making, which asked about flagship gear (presumably FF) from other manufacturers, and whether there is a special "look" to Leica photos than cannot be obtained with those other cameras. And my point is that in that context -- i.e., between two comparable kits -- the quality of the final photo comes from subject, composition, story, exposure, color/tone, editing, etc., not gear.
As I noted earlier, the
shooting experience may be vastly different between two systems, and those differences can certainly matter. But there is no magic to the output.