Any way to revert Emoji Keyboard size?

Just updated my iPhone to iOS 18.1.1 and now my emoji keyboard icons are HUGE; like, it only fits 4 per column.

I’m not sure if I changed a setting with a gesture or something, but I’ve looked everywhere and I can’t seem to find out how to get my old emoji keyboard back.

How can I revert the size change?

Follow-up question: if I can’t revert the size change, then how much does a Samsung cost?