How to get Toolbar Site Notifications Like Opera GX?

So i switched from opera gx to this cuz I heard this is a much safer and better browser.

I was able to set everything up apart from somehow getting notifications of when I get msgs from either whatsapp or discord. (I had kept both of them on my sidebar in opera gx)

this is the toolbar if y'all were wondering

If its not natively supported, is there some extension of sorts which I could download instead?