As title says, is this even possible?
I do this on other search engines and it looks like it worked for Brave Search as well for the one or two times I used it.
First, when you want to search for something on just a specific domain, you use the phrase site:DomainExample.com. So if I wanted to look for cats and just get youtube results, I would type “cats site:youtube.com” (minus the quotation marks of course).
Now to address your question, if you want to exclude a domain, just add a minus sign to the specified site in that example. So “cats -site:youtube.com” will give me all the the site results for cats without youtube.
As far as I know u can’t do it right now but there will be a link coming so u can exclude domains