If you're a Windows user looking to reclaim disk space, WinDirStat is your best choice. Its treemap visualization makes it easy to identify large files quickly. Being lightweight and fully open-source, it’s perfect if you want a straightforward tool without any bloat or telemetry. However, be prepared for its dated interface and slower initial scans on large drives.
On the other hand, choose immich if you're focused on managing your photo and video library with a strong emphasis on privacy and self-hosting. It's suitable for tech-savvy users who prefer control over their data and are willing to set up the hosting themselves. However, if you lean towards needing seamless integrations or prefer a cloud-based solution for convenience, then immich is not the right fit.