From reddit:
We’re collaborating with other third-party launcher developers to gather feedback on common issues affecting users across different devices. The goal is to improve the experience for everyone using custom launchers.
In October, we’ll be attending a Google event and meeting with members of the Android team. It’s a great opportunity to share our findings, and your input could play a key role in helping us bring these concerns directly to Google.
Take a quick moment to complete our survey: Survey Link
Your feedback is important and could help improve the Android launcher experience for everyone. Thank you for helping us make a difference!
Nova regularly stops refreshing the screen. I know it’s worrying under the background and I see small tells like the keyboard appearing even I tap things.
I have to press the power button to switch the screen off and back on again to fix. Happens several times a day.
Nova support said it’s an android issue not a nova one they can fix.
I think it’s a commonly known bug by now.