Some programs shouldn't be proprietary.
LocalSend lets you send and receive files without hassle across all manner of devices.
File Explorer is the default app for managing files on Windows. Despite improvements over the years, it has remained a frustrating tool to use because it's so slow and clunky. It's been such a problem ...
GitHub hosts powerful open source apps you can use daily, from Immich for photo backups and Upscayl for image upscaling to VERT for file conversion, BC Uninstaller for cleanup, Mole for Mac storage, ...
If Windows is your preferred operating system, consider these open-source apps. There are numerous open-source apps available for almost any task. These are all free to install and use on Windows.