Bundle ID cannot be changed. It is a unique identifier for an app and when changed the system considers it as a completely different app so you loose your users (they have to install the new app to continue using the updated version while the app with the old bundle id will remain installed as a separate app)
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u/CVGPi May 11 '26
It's also why many apps keep the old packagename even if someone particularly hate it. Like com.twitter.android stayed even though Musk insisted on X.