I'm having the same issues. Half way through, on a Windows laptop, I get:
An error occured while patching the Game.
System.IO.IOException: The process cannot access the file 'C:\Program Files (x86)\Topgolf\WGTLauncher\golf\golf.exe' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
at SimplePatchToolCore.PatchUtils.CopyFile(String from, String to)
at SimplePatchToolCore.IncrementalPatchApplier.ApplyDiffToFile(String filePath, String diffPath, String targetPath, Int32 patchItemIndex)
at SimplePatchToolCore.IncrementalPatchApplier.Execute()
at SimplePatchToolCore.PatchMethodBase.Run()
at SimplePatchToolCore.SimplePatchTool.PatchUsingIncrementalPatches()
at SimplePatchToolCore.SimplePatchTool.Patch()
at SimplePatchToolCore.SimplePatchTool.ThreadPatchFunction()
i am not running the process separately, and have confirmed it is not running