I’ve encountered 2 situations in Brave blocks legitimate pop-up windows and thus makes continued use of the website impossible.
The Web interface to certain business backend systems (an SAP system in my case) use pop-up windows as part of the normal user interaction. E.G. confirmation of user actions such as “Save, Don’t Save, Cancel” or “Are you sure? Yes/No”. These are blocked by Brave and mean that you cannot proceed any further with the business transaction that has otherwise been working very nicely.
When selling an item on eBay, you start by entering a description of the item. As you type the description, a dropdown list should appear containing matches to the same or similar items that other users have already sold. This dropdown list never appears in Brave. Consequently, nothing happens when you press the “Sell” button.
Looking in the console, I see lots of error messages
Failed to load resource: net::ERR_BLOCKED_BY_CLIENT