Yes, you can use the same Google account on multiple devices if you purchased through the Play Store. For sideloaded versions, you can install the APK on multiple devices as well.
: Remove bloatware or private apps from the drawer without uninstalling them. Nova Launcher FAQ nova launcher prime 70 58 apk updated
The changelog for version 7.0.58 is relatively modest but important, focusing primarily on stability and bug fixes: Yes, you can use the same Google account