When exploring xdg runtime dir is invalid, it's essential to consider various aspects and implications. terminology - What does XDG stand for? The XDG Base Directory Specification standardizes best practices for which folders a user-scoped programs may write to. What does XDG stand for, what's the story behind the name? Moreover, how can I set which application is launched by 'xdg-open'?. The xdg-mime commands are exactly what I needed!
From another angle, i'm running Manjaro-i3, so I don't have a desktop environment at all. (and the GConf and update-alternatives answers above don't apply) Where should the XDG_CONFIG_HOME variable be defined?. The XDG specification talks about the XDG_CONFIG_HOME variable, but does not specify where it should be defined. Should we define it in /etc/X11/Xsession, or is it the window manager's config file ...
command line - What is XDG_RUNTIME_DIR? 11 XDG_RUNTIME_DIR is an environment variable set in your X Windows context, so that programs can find things. You (neo) have set up the graphics context. By trying to run evince as root, you have entered the condition where a user (root) is trying to access another user's (neo) display.

This is regarded as a Bad Thing. It's important to note that, command line - Open Microsoft Edge in Ubuntu - Ask Ubuntu. I run Ubuntu on my Windows laptop, and I only use the Microsoft Edge browser. I tried to used the 'xdg-open' to open the desire website, but Microsoft Edge is not listed in the supported browser. Similarly, xdg - What do user folders do?
xdg-user-dirs is a tool to help manage "well known" user directories like the desktop folder and the music folder. Similarly, it also handles localization (i.e. Equally important, translation) of the filenames.

The way it works is that xdg-user-dirs-update is run very early in the login phase. This program reads a configuration file, and a set of default directories. Additionally, how does one enable WSL Interoperability on Ubuntu 22.04?. I don't know what exactly happens but it seems that the wslview.desktop launcher is meant for using Ubuntu in Windows WSL.
But for some reason it's launched for every xdg-open invocation. Furthermore, when it's removed, xdg-open will use another launcher associated with the URL, the correct one. google chrome - What is xdg-open?

The xdg-open is used to open a url or file in the your preferred program.

📝 Summary
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