We know that English-speaking users read from left to right, top to bottom.
We also know that on a web page, users scan using an F pattern (https://www.nngroup.com/articles/f-shaped-pattern-reading-web-content/).
If I have a grid of application icons, at what grid dimensions (# rows, # columns) would a user change his scanning pattern from strictly left-to-right/top-to-bottom to a F pattern if he was searching for something specific?
I'm asking to help inform how I layout some application icons (and their associated text underneath) assuming I know which applications the user would most likely be seeking. In this case, the grid dimensions change when a new application is added to the user's account, which doesn't happen often. I'll also consider muscle memory/position so it could be that designing this grid for a F scan won't make sense anyway, but I was still curious about the scanning behaviour.
Here are some grid examples to reference in the discussion, but feel free to make up your own:
Grid A: 3 x 2
Grid B: 5 x 4
Grid C: 10 x 10+