After vue-cli3 adds the environment variable, the package file is not compressed? - Codes Helper

1: add prod mode to package.json and package it as a production environment, as follows

"scripts": {
    "dev": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "prod": "vue-cli-service build --mode prod"
  }

2: add .env.prod file

NODE_ENV = "prod"
VUE_APP_TITLE = "prod"

3: the structure of the packaged file after executing yarn run prod is as follows: js is uncompressed

dist
  fonts
   ionicons.d535a25a.ttf
  img
   404.a57b6f31.png
  0.js
  1.js
  10.js
  11.js
  12.js
  13.js
  14.js
  15.js
  16.js
  17.js
  18.js
  19.js
  2.js
  20.js
  21.js
  22.js
  23.js
  24.js
  25.js
  26.js
  27.js
  28.js
  29.js
  3.js
  30.js
  31.js
  32.js
  4.js
  5.js
  6.js
  7.js
  8.js
  9.js
  app.js
  favicon.ico
  index.html

and the structure of the packaged file using yarn run build is as follows

dist
  css
   app.7a85a07c.css
   chunk-0604759a.5d6e2348.css
   .....
   chunk-vendors.abeab9d7.css
  fonts
   ionicons.d535a25a.ttf
  img
   404.a57b6f31.png
  js
   app.ea166f07.js
   chunk-0604759a.7923a01a.js
   chunk-0a2cc683.48cfed43.js
   chunk-0ed874c9.71ef4278.js
   chunk-1087bb1f.f0f4cfec.js
   chunk-187c526f.867ab8fd.js
   chunk-1b46a105.023270fc.js
   chunk-1ecf3cca.1d223a6e.js
   chunk-2372d311.63d6b4a6.js
   chunk-26c401f8.be853f54.js
   chunk-28204654.b10ad966.js
   chunk-2e4a4a92.8890bf91.js
   chunk-32c4c08e.1d03fdf2.js
   chunk-3813bc82.600b4ecc.js
   chunk-3b2358f2.22506c01.js
   chunk-405f2a88.860b3ed3.js
   chunk-44386673.ce452587.js
   chunk-4cb52e7a.4da34330.js
   chunk-6f4e1cdf.2032cc46.js
   chunk-761b47f5.6b640b83.js
   chunk-7b1539d2.7ba2d70a.js
   chunk-7dc86e44.198af0fa.js
   chunk-95693410.26c158c4.js
   chunk-a054b0f2.0c4952fd.js
   chunk-cc3d3f00.3327ae0a.js
   chunk-ec79c908.5a5cdeac.js
   chunk-ed37fce8.82503de2.js
   chunk-fa23f3d4.72e5cbfb.js
   chunk-vendors.e32712db.js
  favicon.ico
  index.html

I hope prod can perform the same as build

. < hr >

to modify NODE_ENV is to switch apiUrl. Can you execute commands such as compression only if it is set to production ? < hr >

there are too many chunkjs files, how to optimize?