Never even heard of "Quetta" before. They really don't have any presence online.
Also, "AI-based ad block"? Why not base that off user reports, off common ad design (e.g. the boxes on the top, or to the side, of a page; floating video players on the bottom-right; etc.), and similar? Things that DON'T need AI?
I seriously don't know what they mean by using an AI powered ad blocker. This application also has the ability to download images that are shown but because I really only download Twitter images with an extension that allows me to do it much better>
I don't have to use the Quetta one but there isn't a way to turn it off and for sites like Twitter, it gets really annoying to navigate without having to press the button and whatnot. And here they are on said site gloating about how their browser is better than any other one.