At least your soundstage should have been fairly centered, always something.
I find it amazing how well good mono can image. I did "experiments" in the 70s and again a few years ago (prompted by some SHF members saying that was impossible and generally misunderstanding me). I was mostly interested in 1 speaker mono vs 2 speaker mono. As far as width goes, I found that mono can image (concentrically) speaker to speaker while stereo can image well outside the speakers (with L & R positioning).
I thought I was the only one who'd made such a mistake.. I was under the impression my MacBook audio stack was busted for a year until I rediscovered the "Play as mono" accessibility setting.
I bought a few Miles Davis mono reissues from Record Store Day about 2012. Vivid reverb that filled the room. I was pretty shocked. Sketches of Spain imaged extremely well with all those players at once.
I know the reason why I originally flipped the switch, it was due to scooping a Mono record that I can't even recall anymore. For the life of me I probably only own 3 or so mono albums, I don't go out of my way to get them usually due to price/scarcity. Makes me wonder if I made any false judgment calls on that SQ for other records or gear. Can't say I could complain those 6 months at least!
Separate names with a comma.