I know what you mean- some guns are much more mechanically inherently accurate than your same glock 19.
But some guns are just easier to get good accuracy from than others. For me groups I can get with the glock at 25 yards can't even be dreamed of at fifty, while I can get groups just a hair bigger than my 25 groups at fifty with a revolver and it does not seem to require nearly as much focus and effort for some reason.
Most shooters have a gun they feel most comfortable and shoot best with .
Another example I tried very hard to shoot a 1911 well in bullseye competition but simply shoot a revolver better.
Back to glock. My 19 feels better in my hand than my 26, and seems easier to shoot even though my group sizes at speed are exactly the same with both, it just seems I am working harder to get that group than with the 19. Pretty abstract I know