Anyone had DJI Fly working on this phone?

I've tried the newest version and older versions, the app immediately crashes when I open it.

As this is the current official app, are there any plans to update it to work on current phones?

Hi there. Sorry for the trouble. Can you please confirm if you did download the version that was available on our website? Kindly please refer to the link below and click the "Download for Android" Copy and paste the generated URL on the browser of your mobile device then download the APK, once you already download the APK file, please go to the download section on the browser of your mobile device then open the file after that, the APK will automatically install on your mobile device. Please note that if you will go directly to the storage and press the APK file it is normal that it will not install. Please keep us posted. Thank you for your support!

It works quite well on the Pixel 4.  Sorry but I don't have a Pixel 4A to test it on.  Have you tried a fresh download from this site?