I am hoping there will be a large screen iMac Pro in the future - the all-in-one form factor of iMac is incredible and I'm part of the customer base who does not want a Mac Studio or Mac mini with a separate display
...and that's where the opinion splits.
First - once you accept that user-upgradeable RAM and AMD GPUs were always going away with Apple Silicon - even the M1 Max Studio plus a Studio Display cost about the same as a comparably tricked-out i9 iMac would have done if you
had to get the Apple 32GB upgrade, and a lot
less than an iMac Pro (which, by that time, was slower than the top-end iMac, let alone the Studio).
Second -
at best the Studio+display "costs" you one extra mains cable and one thunderbolt cable to the display. That's assuming that you don't have any other devices connected - if you
do the Studio suddenly becomes much neater, with all the cables tucked around the back at desk level rather than dangling from the display
and front ports for anything you want to connect on the fly. Ever tried to plug an SD card into an iMac? Yeah.
Now, I'm looking at my 2017 iMac - an out-of-date Intel Mac welded to a still-beautiful 5k display that I can't use with anything else. That display would have been perfect for my M1 Studio, and even the Mac part would be occasionally useful (say, for running Windows or a few bits of old software that don't like Apple Silicon) if it was in a separate box that could be tucked under a desk or something - but, no, I'd have to clear a desk and move the whole iMac on to it.
I would never have bought the 2017 iMac if the choice at the time hadn't been the 2014 worst-mini-ever or the 2013 Trashcan.