File steam-1.0.0.70-desktop-categories.patch of Package steam
diff -Nrup a/steam.desktop b/steam.desktop
--- a/steam.desktop 2021-04-07 14:33:15.000000000 +0200
+++ b/steam.desktop 2023-03-18 11:52:46.530815267 +0100
@@ -31,7 +31,7 @@ Exec=/usr/bin/steam %U
Icon=steam
Terminal=false
Type=Application
-Categories=Network;FileTransfer;Game;
+Categories=Game;
MimeType=x-scheme-handler/steam;x-scheme-handler/steamlink;
Actions=Store;Community;Library;Servers;Screenshots;News;Settings;BigPicture;Friends;
PrefersNonDefaultGPU=true