Computer rings even with Do Not Distrub activated
When I'm on a zoom call on my 2020 MacBook Pro, I often get interrupted by calls and texts and WhatsApp sounds on the computer. I have Do Not Disturb activated on the computer, and all the notification sounds turned off (only banners and badges are activated). How are these calls/sounds getting through, and what can I do to stop them from sounding at times when I don't want to be interrupted?
MacBook Pro 13″, macOS 12.2