Hot Module Replacement no JS or CSS Folder in public

Laravel Framework 8 33 1, npm 7 6 3, Manjaro Linux 21

I want to use mix and HMR, but my js and css folders are not deployed.

For development I use:

php partisan serve

Now here comes the problem (or so I presume). Hot Module Replacement via:

npm run hot

    

If I take a look at my public folder... there are no js oder css folders to be found.

Using run dev works just fine and delivers the js and css:

npm run dev
    

I am new to laravel, mix and vue. How can i figure out the problem?