Question for the driver aficionados

With most major brands coming out every year with a new set of drivers, how much year over year improvement is there?

For example, my current driver is the Cobra Radspeed which came out about 3 or 4 years ago. If I switched to a 2024 released driver, how much actual improvement would I see?

I wouldn’t think a lot at all. Now if I was a scratch golfer and every little thing could mean shooting 72 instead of 74 I could see how that would be valuable, but with me being about a 15, I would need a significantly better driver to improve my scores.