Fresh ground beans, ~93°C water, pour-over or immersion brewed. If the coffee tastes dirty, acrid and bitter, it's because it was poorly made or it had gone bad. It should be sweat and caramelly or chocolatey.
A lot like how rancid meat is often hidden by added spicy flavourings, bad coffee is hidden by added sweat flavourings.
Yeah Vivaldi is pretty neat. I use it when I need a Chromium browser. Otherwise I use Zen which is similar.