This is not meant to be a "look DaVinci is better" thread. It's just a comparison of features that in my opinion are long overdue to get some love and updates.
First - playback speed and audio:
Still after all these year changing the playback speed results in audio artefacts (this phasing, robotic reverb, chorus) when maintaining pitch. I know no audio or video player that does this as of today. Either there is no audio or natural audio.
For time stretching it's the same problem. "Do it in Audition" is a workaround that shouldn't be required for quick edits.
Second - the graph editor:
The graph editor in Premiere is barely enough to do anything serious in it. It's way too tiny and can't be scaled up. The last DaVinci updates show how it should be done. You have a lot more control that way, even for simple things like quick speed ramping and easing in general.
No, it shouldn't be a replacement for After Effects but it makes no sense to start up Ae for basic easing configurations.
It should at least be able to scale the graph editor vertically to have more control.
In my opinion for quick edits, these are basic core features that should get reworked and polished (like they did with the dynamically updates of audio waveforms).
I know, there are extensions for both features but they don't feel as integrated in the UI/UX as it should be. They are also just a workaround for some missing features.