Someone made a good comment, regarding getting the smaller Pixel 7 for easier handling and one handed operation. Well not really per this person, look at the Pixel 6 next to the 6 Pro, they're actually much closer in size than you'd realize, put them side by side, and the two phones aren't that different in overall size.
My son as the Pixel 5, now that phone is small in a good way, and that can truly be used one handed. Then put the regular Pixel 6 next to the Pixel 5, the P 6 a giant in comparison, huge difference in size.
My point I just say get the 7 Pro with the smoother 120hz display, because in reality the 7 isn't that much smaller, and is still a two handed phone. If you want a much smaller phone, the Pixel 5 is really the only one.
The 7 Pro isn't a smaller, but the the 7 is than the P6.