In Chrome, when you type in a site and press TAB, you can search within the site.
That feature is supported by OpenSearch:
As of now, Brave does not have that feature, which is a really pain in the ass.
It’s just parsing a XML, it’s very easy to implement,
In Chrome, when you type directly in the search bar in regular words, not URL, the search bar automatically suggest possible options retrieved from the search engine.
Instead in Brave, Brave only suggest things from the history, which is OK, but not as convenient as Chrome.
I use these two features a lot in Chrome, I am just too lazy to type, and Brave isn’t making it easy, sometimes I switch back to Chrome for this.