Once you use a 15" MacBook Air, you get used to the roomy screen and find it hard to adjust to anything less. That said, you do get occasionally annoyed with how wide the laptop can be physically.
Once you use a 13" MacBook Air, you get used to how easy it is to carry and how comfortable it is to use in tight spaces and find it hard to adjust to anything else. That said, you do get occasionally annoyed with how crammed the laptop screen can seem.
Once you use a 14" MacBook Pro, you get used to the crisp screen and Pro Motion, and find it hard to adjust. That said, you do get occasionally annoyed at how thick the laptop is (relative to the other options) and the fact that you may have a computer with specs and power you paid for but you never use.
I've been using my M2 Starlight a lot more the past week ahead of my decision. I overbought the last one, with 16GB RAM and 1 TB storage. I don't use much storage on my laptop, so 256GB is fine. I am debating between the two base models. The more I use the screen on the 15", the more I think the screen size is the key differentiator for me versus 13 inch iPads.