Here are the apps many people currently cannot avoid, usually because of their jobs.
That said, Element, in the Instant Messenger section, is a combination of both Discord and WhatsApp, and can replace those apps including Zoom and Microsoft Teams. This is also true for other Matrix clients, like FluffyChat. Even Signal, the WhatsApp alternative, has features that can somewhat replace these apps.
So, unless it's for your job, you really don't NEED these apps.
Lastly, as requested, I've included Jitsi Meet (and Jami), though in my own testing, they weren't that great and were cumbersome to set up for the average user. Not that Element (and its clients) isn't somewhat cumbersome itself, but after it's set up, it's all good from there.