Can the automatic memory management mechanism free resources for a subscription that is no longer active but still in memory?

The automatic memory management mechanism (for example, garbage collector in Android) releases resources only when there are no more active references to an object. If a subscription is still in memory due to strong references, even if it is not active, the garbage collector will not be able to delete it.

To guarantee resource release, it is necessary to explicitly unsubscribe from subscriptions and nullify references to them. Otherwise, memory leaks may occur, as the automatic mechanism does not know that the subscription is no longer needed if there are references to it.