Here is a good article that describes the different values for the Webpack’s devtool setting ( the one that controls the source maps).
Quasar automatically enables source maps for development mode. The first step to properly start debugging is enabling source maps. And apply the changes to your project as you go. The best approach is to open that in a browser beside this page so you can review these instructions as you are reading those instructions. Copied to clipboard Debugging a Quasar project in VS Code