The developers of the WhatsApp messenger have added to the beta version of the app for Android a feature that allows you to completely disable notifications from archived group chats. This is reported by the 9to 5G oogle resource.
The new option was created in response to complaints from users who are unhappy with the fact that all members of the group will know about it when leaving the group. The 'Archived Chats Ignore Mode' introduced in the messenger solves this problem by making it possible to block annoying messages without having to leave the group.
Unfortunately, nothing is known about the timing of the appearance of such a function in the final versions of WhatsApp.