assemble release apps (dev) change to playstore version even auto update disable

i had assemble release apk then i installed in my phone, this apps had link to OTA dev link (different from OTA production link)
And Dev apps still using Dev app icon with android icon.

But tomorrow or several hours later (i dont know exactly), apps icon change to my production apps (company icon), and when i open the apps it showing our production apps in playstore.

Why was it happen???
Note that i disable auto update in play store.
it happened in Android Oreo and android 10.
In my android 10 app info, it is state that “app installed from package installer”.
But when app suddenly changed , it is state that “app installed from playstore”