@Darth123 the open as window has been gone for a long time. We do have the option to get a PWA for any site which would do that. And you can edit any desktop shortcut yourself to launch in a new window if you prefer. But it’s not an option through Chromium browsers anymore.
You can reference where these discussions have taken place before, such as topic below:
and of course my own reply from back then:
Long and short of it is that this is an upstream change and it seems Brave isn’t going to be doing the extra work to try to maintain it. Who knows when or if that might change, but for now…