Look into using override fun resize and override fun create? method

WitchQueen/core/src/main/kotlin/com/iofferyoutea/WitchQueen/MainMenu.kt

@@ -46,17 +46,20 @@ class MainMenu : KtxScreen {
         addActor(hostButton)
         addActor(joinButton)
     }
-    val lobbyContainer = Container<Actor>(hostOrJoinVerticalGroup).apply {
+    val lobbyContainer = Container<Actor>(hostOrJoinVerticalGroup)
-        table.add(this)
-    }
 
     //region Play
-    val casualButton = TextButton("Casual", defaultTextButtonStyle).apply {
+    val casualButton = TextButton("Casual", defaultTextButtonStyle)
-        table.row()
-        table.add(this)
-    }
     //endregion
 
+    val everythingVerticalGroup = VerticalGroup().apply {
+        addActor(lobbyContainer)
+        addActor(casualButton)
+        table.add(this)
+        Gdx.app.log("MainMenu", stage.width.toString())
+        //Gdx.app.log("MainMenu", table.width.toString())
+    }
+
     private fun update(delta: Float) {
         if (hostButton.isPressed) {
             Gdx.app.log("MainMenu", "Host button pressed")
@@ -78,6 +81,11 @@ class MainMenu : KtxScreen {
         stage.draw()
     }
 
+    override fun resize(width: Int, height: Int) {
+        Gdx.app.log("MainMenu", "resize called! New width: $width, new height $height")
+        everythingVerticalGroup.setSize(width.toFloat(), height.toFloat())
+    }
+
     override fun dispose() {
         stage.dispose()
     }