The problem with distributing standalone installers on Windows is that all non-popular apps are immediately regarded as malware by Windows Defender unless you go through the horrendous process of signing your app, which requires obtaining a certificate (which also requires forming a company that is not an LLC) and waiting more than a month while navigating multiple rounds of bureaucracy. I’ve done it for my app, and it was a terrible experience. Microsoft should study how Apple handles signing and notarization.
EDIT: spelling.