Found the missing link to turn off the pre-fetching, turned out it was a vue plugin causing it outside of pwa etc

https://medium.com/@mrodal/how-to-make-lazy-loading-actually-work-in-vue-cli-3-7f3f88cfb102

ayanova/webpack.config.js

@@ -1,6 +1,11 @@
 // webpack.config.js
 
 module.exports = {
+  optimization: {
+    splitChunks: {
+      chunks: "all"
+    }
+  },
   rules: [
     {
       test: /\.s(c|a)ss$/,