When you have 3 buttons (one primary and 2 secondary) in a 2×2 grid, where should you leave the space?

I have 3 buttons in a 2x2 grid as shown. One primary (Decision) and 2 secondary buttons of equal importance. This leaves a space in either the top right or top left. Which option makes most sense and is there a convention for this? There will be a 4th button in edge cases labelled “More” and this contains a drop down listing a few more options eg run a script etc