Yes, I created a new Expo SDK 44 app that just shows an alert. If I run it in Expo Go the Alert’s OK button shows in blue. If I build with eas build -p android --profile preview --local the OK button shows in black.
I’ve found some possible ways to change the colour of the button, but I don’t know why it’s different in the EAS build in the first place. See, for example, the following answer, which would require a config plugin:
If you want to try this, have a look here:
But I think it’s worth creating an issue on GitHub.