sway: make gaming windows floating by default

user/sway/sway-assigns.nix

@@ -59,6 +59,7 @@ in
         { app_id = "wdisplays"; }
         { app_id = "pavucontrol"; }
         { app_id = ".*[Hh]elvum.*"; }
+        { workspace = "9"; }
       ];
     };
   };