I've just updated to 18.2. Take a look at the below images, with 'small' and 'large' icons.
The spacing is whack and it looks like there should be another row available. But no, there isn't.
If you can't see the problem(s) here, then you must have lower standards for Apple's usual polish than I do.
This is just but a small example of what folks such as myself mean by 'glitches'.
Just because you don't experience them, does not mean others don't.
View attachment 2469367
View attachment 2469368