I use kagi and had not even heard that they have their own browser. Why would why use that over one of the "big three" (FF/Chrome/Safari) with serious corporate security teams backing them?

edit: Okay so it's webkit based, mac only, with built-in adblocking, which sounds nice, but honestly the idea that it can easily install extensions from both chrome and firefox sounds like a security nightmare to me.

The fact that the only mention of security in their FAQ is to conflate it with privacy

"Most browsers regularly "phone home" dozens or even hundreds times. Each request poses a security risk"

is a red flag IMHO