I get what you are saying.
It seems like “squats” should be a pretty definitive term for an exercise, but in practice it doesn’t actually work that way.
To illustrate: The guys who promote a program like Starting Strength tell you to chase after as much load as possible, precisely because you then have to engage as much lower body musculature as possible. Done with a wider stance and a low bar position, it becomes more hip dominant, also works the glutes and trunk extensors more heavily, and thus is a more comprehensive lower body exercise. Is that a good thing or a bad thing? Depends on your goals, and tolerance for injury risk, I suppose. I’ll note that others complain that the low bar squat doesn’t do enough for your quads, and you really ought to do high bar, or front squats.
In your case, being a body builder, you probably prefer a style that emphasizes quads and thighs, and I can see where you could achieve that by using a narrower stance, staying more upright, keeping the weights back a little. That actually is how I try to do them now, though partly for other reasons. Someone who was looking more for the feel of a heavy low bar squat would probably not find that satisfying, and would feel the weight was lacking.
FWIW, after reading your post, I did experiment with doing a weighted 30-10-30 squat. It happens I have a 54 LB kettlebell, and so I used that rather than 2x25LB dumbbells. I just held the kettlebell with both hands, and let it hang between my legs as if I was going to do a swing. The low weight position feels very stable, and it is self centering, so a lot of my concerns about controlling bar path go away.
So I did a 30 second descent, then did 10 regular reps @ 1-2 cadence. I think I was at about 27 seconds when I got to 10. I wasn’t close to failure, but I proceeded to the final 30 second negative. By the end of that I was feeling a burn in my thighs. But the weight always felt in control, and I never felt like I was hitting failure. I felt pleasantly fatigued, but not particularly drained. Oddly, about 10 minutes later, I did feel some noticeable fatigue in my quads, almost like a delayed onset fatigue. I’ve never experienced that before, so clearly it was a different kind of stimulus than I’m used to.