Good morning,
In my opinion, it would be a good idea to add a blur and border smoothing to the panel where you can modify the position and scale.
It would also be good to add more effects and transitions like Seedles natively. This helps avoid issues with third-party plugins and helps improve today's demanding workflow in most cases...
What Black Magic is doing with Davinci Resolved is fantastic. I'm not talking about merging AF with Pr, but putting Premier on par with Davinci because many users are migrating.
Regarding performance, they've improved a lot, so I congratulate them...
Where I work, they've been using Premier for over 10 years, but they're already migrating to Davinci, and it's really a shame!