Is there a graphical Linux utility with sensible workflow that lets me change/download icons for desktop (XFCE) and/or Steam Library?

XFCE, Steam, and Lutris let me change icons, and cover art, but it is a PITA. If there is something easier, I'd like
to know what it is!

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Please Note: If you do not have a recommendation for a graphical utility for Linux, then please boost instead of typing out a useless answer. Also, mansplainers of any gender will be blocked.

#LinuxMint #XFCE