2009 Ford Edge - Loss of power only from 45 - 55 MPH

I have a 2009 Ford Edge AWD with around 110k miles. Automatic transmission. No previous issues.

It has recently started experiencing a very brief loss of power.

Here are some things I’ve noticed:

1. It always happens between 45-55 MPH. It has never happened below or above that range.
2. It only happens when I have the gas pedal pressed in around 5-10%. So it only happens when I’m maintaining speed. It never happens when I’m idling or losing speed. It also never happens if I press the gas pedal further than around 10%. The only sure way that I’ve found to prevent it is to press the gas down and accelerate moderately hard up and then quickly release the gas and idle until I need to increase speed again.
3. It happens on both flat sections of roads and on hills (both up and down).
4. I would consider them to be “stutters” as they only last about 0.5 seconds. However, if I don’t either release the gas or press the gas further, they will continue to occur with about 1 second between each stutter.

If needed I can record a video while intentionally causing the issue. Anything I could experiment with to help narrow down the potential cause?

Do you think it’s a transmission issue? Maybe some sort of gas intake issue? An ECM issue? Engine issue? Spark plugs? Any suggestions would be appreciated. I’m not a car guy but I’m confident I could fix some smaller issues myself if I knew which direction to go.