Even thinking about this brings us a sense of zen.
Reports indicate that WhatsApp is working to import something called Vacation Mode for its users, which would snooze all chat group alerts.
Now that it may sound decent, but that's not all. At this time, users are free to quit group conversations manually, but conversations will still appear at the top of their conversation list when new messages are sent. Which is useless because it means you can not enjoy the conversations you want to have without being disturbed by the results of the group chat.
Similarly, while you may not receive push notifications, you still have the annoying red dot at the corner of the app icon. I'm afraid of you. You want to read all of these messages you prefer to ignore.
However, with the "Holidays" feature, all messages sent to silent group conversations will be automatically archived, so you can check them at some point in the future when you're less stressed. Or, you know, never. It's also not good.
This feature was first observed by WABetaInfo and draws even closer to completion, although no start date has been set.