Just a few moments ago, an ad sponsored by Opera GX saying "try mr. beast theme" popped up in the corner of my desktop. I dont appreciate the browser stepping out of its' line to advertise its' theme selection. I absolutely hate the fact that despite having the browser closed, the notification overlay popped up. It feels malicious.
I have uninstalled the browser since then. I don't need advertisements popping up while I work. Imagine if every software did that?
Stay within the line of reasonable expectations of what your browser can and cannot do.
Thanks.