Customizer > Layout > Blog: different options

Hi there,

I have two different wordpress installations and in both I have installed GP premium. In one installation I imported "Pixel" from the library, in the other I imported "Abstract".

With Abstract I have a large selection of settings in the Customizer > Layout > Blog:
https://prnt.sc/tUzPSpKe2xU2
(the screenshot shows only a small part of the settings, but there are a lot more)

With Pixel I have only one single setting available:
https://prnt.sc/b8cL7e9NBQOs

Unfortunately I can't figure out what the reason is.
do you have an idea why i have only one option to influence the blog layout with pixel?

thank you!