https://www.pcgamer.com/quake-champions-adds-heatmaps-showing-the-danger-spots-in-every-arena/

Players wanting to improve at Quake Champions now have a new tool at their disposal: official heatmaps of every arena. 

They're available here, and you can set them to show either kills or deaths as well as filter for individual weapons. It's fun to play around with, even for someone like me who never really got into the shooter.