I tried brave search begin with site:reddit.com test and it still works
I even have diverse reddit queries from last week and even 2 years ago. this workaround is still ok tbh
I tested and it got lots of reddit queries from even 2 years ago afaik.
just begin with site:reddit.com test for ddg and it still works
begin with site:reddit.com test is much more accurate to get reddit search on brave search tbh