I'm on ISHTAR too. No issues with Keep and I use it all the time.
Gallery crashes, but I usually use Google photos, so no issue for me. GPay, android auto also working well.
ISHTAR. Yeah after the adb and reboot, it seemed to work for a few times, then gallery started crashing again.
Am using Google Photos, which seems stable.
Thanks - my GPay was failing even after installing 20.12. After clear data and cache for Google Play Store, Google Play services, and GPay, I can register card on GPay.