@JohnPhilpin I started at that point, many years ago (D70 + a few lenses). Slowly kept upgrading (thus, D750 right now, plus a bunch of primes and a telephoto I quite literally never use).
For me, I find I never carry it because it's too bulky. So, after lots of chat here, I got the X100F (see story here blairmacintyre.me/2019/05/1...).
But the tradeoffs for me don't fit your requirements. I wanted a single fixed lens so I wouldn't have the templation of multiple lenses (which would make it too bulky) and I didn't want a zoom because I wanted fast (for low light) and (again) didn't want the distraction.
I never use telephoto lenses because I'm usually shooting in low light and so I want speed.
The cameras kept getting more $$ because I craved better image quality. But I suspect I could do more with less money right now.
Part of the reason I posted this questions to @brandonlee was because I am totally out of touch with the latest cameras. I know I want a good sensor (priority #1) and a couple of good prime lenses (priority #2). But are there things out there that approach the image quality of my D750 without a lot of it's features-I-dont-use, for less money?
FWIW, I have a Canon SL3 that I use as a webcam, with a cheap 35mm f2 lens, and it seems to take nice pics. And it's small and light. But I have no idea what the competators are like, and what I'd think if I was using it as a camera. It's certainly WAY better than my iPhoneXS!