Doing my tests, this worked out fine - and on my Macbook (I have to admit: The screen is quite small, but has a high resolution) I cannot see any difference between the original image and the shrinked one.
I cannot see any difference, but the shrinked file has only round about 50% the size of the original.
Quite cool, huh?
But to be honest: The credits don't belong to me. I just built some kind of a wrapper for spatie/image-optimizer, which does the work.
We will see what I can build next.