If not for the reason that you could configure a certain search engine like e.g. Startpage to “:s” instead of “:sp” (and StackOverflow to “:so”), see this thread.
Thanks for the feedback @tlaloc77.
It may come to Brave 1.0. But need to check it first. I’ll get back to you.
As mentioned here, this will be fixed once we move to Brave-core. This will be an out-of-box functionality in Brave Core.
Closing the thread as its going to be fixed with Brave-Core.