QuickFolderSize v1.0.0
Download QuickFolderSize-binary.zip, extract every file into the same folder, and run QuickFolderSize.exe.
Keep QuickFolderSize.exe, WebView2Loader.dll, and index.html together.
Windows 11 already includes WebView2 Runtime. On some Windows 10 / LTSC / Server PCs, install Microsoft Edge WebView2 Runtime (Evergreen).
Full Changelog: https://github.com/maktak-105/QuickFolderSize/commits/v1.0.0