How do I export a game in windows 10 with webview 2 exactly? I can manage to do it, but will other people when they run the game will they need to install the WebView2 Runtime separately to run the .exe?
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See Exporting to Windows with the WebView2 wrapper, which covers this. As of Windows 10+ all Windows systems should have the WebView2 runtime installed automatically. However some out-of-date systems may not have it installed, but in that case, the exported app will automatically download and install it.