@leocg I've disabled all extensions and ran a full virus/malware scan that came up clean before making this post.

Google is set to my default browser, but whenever I attempt to search anything, it redirects the search to yahoo in Opera GX.
I've triple checked my browser settings. When searching, the logo in the address bar is for Google. I've tried disabling all extensions and running a virus scan and that did not resolve either.
Clearing cache and cookies will fix it for a short while but it returns within an hour. Any advice on what else I can try?