File upload chooser prompt not working on any website

[DoctorG]

@vishv Tested now on Ubuntu 23 with multiple workspaces; file dialog appears for me.
Ubuntu 23.10 / GNOME 45.2 / Wayland / Kernel 6.5.0.14

//EDIT: Perhaps i will try to install a Manjaro on my VM to test in the next hours. Sad, Manjaro crashes on Virtualbox, i can not test and invest more time.

[dphov]

I'm impacted by the same issue

On clicking "Upload file " or "Saving as PDF" nothing happens
Example here
Stack overflow answer

Copying the example in case if link will broke

function readSingleFile(e) {
  var file = e.target.files[0];
  if (!file) {
    return;
  }
  var reader = new FileReader();
  reader.onload = function(e) {
    var contents = e.target.result;
    displayContents(contents);
  };
  reader.readAsText(file);
}

function displayContents(contents) {
  var element = document.getElementById('file-content');
  element.textContent = contents;
}

document.getElementById('file-input')
  .addEventListener('change', readSingleFile, false);

<input type="file" id="file-input" />
<h3>Contents of the file:</h3>
<pre id="file-content"></pre>

Vivaldi version 6.8.3381.48

System Info

                             OS: Pop 22.04 jammy
                             Kernel: x86_64 Linux 6.9.3-76060903-generic
         #####               
        #######              Packages: Unknown
        ##O#O##              Shell: zsh 5.8.1
        #######              Resolution: 1920x1080
      ###########            DE: GNOME 41.4
     #############           WM: i3
    ###############          GTK Theme: Dracula [GTK2/3]
    ################         Icon Theme: Dracula
   #################         Font: RobotoMono Nerd Font 12
 #####################       
 #####################       CPU: Intel Core i9-10885H @ 16x 5,3GHz [53.0°C]
   #################         GPU: Quadro T2000 with Max-Q Design
                             RAM: 31790MiB
                            

xdg-desktop-portal-kde was installed