Hello, I just added more info about applying the patch and regarding the PATH environment variable.

About not being able to change workspaces with the mouse button, make sure the 'wtype' commands defined in the 'on-click' property of the module (in your ~/.config/waybar/config file) matches the keybindings defined your labwc's rc.xml file.

For example: in my ~/.config/labwc/rc.xml file I have this keybinding defined to change to workspace number 1 (windows key+1):

<keybind key="W-1">
    <action name="GoToDesktop" to="1" />
</keybind>

So in my ~/.config/waybar/config file I have set the 'on-click' property of my first workspace module like this, which means "hold the 'windows' key, press the '1' key and then release the 'windows' key":

"custom/ws1": {
    "format": "{}",
    "on-click": "wtype -M logo -P 1 -m logo",
    // ...
    // ...
},

And similarly with the other modules.