Brave browser is based on Chromium browser core of Google, like Chromium Edge, so it is basically controlled by ChromeDriver. One of its advantages is blocking advertisements from all websites.
Katalon support status:
Katalon has not supported Brave browsers like Chrome, Firefox, … yet. However, there is a workaround as below:
Go to Project > Settings, create a custom for Brave like the screenshot below. The value of binary is the path to your Brave browser:
Update Chome WebDriver:
Run the test with the brave browser: