Using the company’s own index rather than Bing APIs.
“Brave Search users can now search for images and videos without being redirected to Google or Bing, though some advanced search capabilities are still absent.”
In fairness to Brave, Google has been scaling back search features too, over time. Do you remember when it would allow you to search a date range? Melpomene Farms remembers.
It's possible they're currently doing AB testing and removing it for some folks and not others to see how much it's used or if they can get away with not having a date range.
There used to be a "custom" option that allowed you to specify a date range... unless something is up from my end or they locked that feature behind a login-wall?
What is the reason for removing search functionality? Is it really just to make it harder to find what people want and potentially be served more ads? Hopefully site:whateverbutprobablyreddit.com never goes on the chopping block.