Well, one hardcore way is to just switch to another app and let your contacts know where to find you if they need you.
I switched to Telegram 2 years ago, haven't installed WhatsApp ever since and all my contacts got comfortable with Telegram that I don't miss out on anything important anymore.
I switched to Telegram 2 years ago, haven't installed WhatsApp ever since and all my contacts got comfortable with Telegram that I don't miss out on anything important anymore.