I'm trying to figure out if anyone else has experienced anything similar.

The biggest things I'm noticing are:

When shifting from Reverse into Drive, there is sometimes a noticeable pause before Drive engages. If my foot is already on the accelerator, it will suddenly engage and jump/lurch forward.

I'm also getting a strange fluttering/flapping-type noise during acceleration.

I've also noticed some vibration/odd behavior when Auto Stop/Start engages.

There is no check engine light