In my Brave Browser I always try to make it as clutter free as possible. Here are the settings I adjust and extensions I install. If you don't know how to open the different settings you can click f.ex. "Apprerance" in the list below to open that section.
New tab page - Click the "Customise the background image[..]" button
Background image
Brave News
Cards
Dark Reader - Darkmode for every website
Markdown Viewer - Open Markdown documents in your browser.
News Feed Eradicator - Remove your Facebook feed