To the folks who posted useless comments instead of actually helping: Thanks for nothing.
I don’t know what you expected. There’s no need to be rude. Installing a Flatpak for example is a very valid answer and would definitely solve the problem.
And initially you didn’t even say how did you install brave, which is quite relevant in order to find a solution.
Edit: You put the error in a screenshot which leaves it rather useless for searching the error in the web. In general, I’d say that you have very little error solving skills and instead of thanking for “nothing” you should be thankful that people even bothered to answer.
yes, but you missed an essential step of the process: apt handles dependencies for you. maybe not in this case, but installing .debs directly requires installing dependencies manually and it’s not uncommon for people to forget about this and then saying that the program does not work.
installing from an apt repo is always better as long as the repo is trusted (and it should be if you’re installing .debs from it anyway) because it handles dependencies and updates automatically. If you just install the .deb, you’ll have to repeat the process per each update.