Earlier quoted context omitted.
Calibre is cross-platform, and windows is about 40 years behind when it comes to software distribution best practices. Windows users don't realize that their OS is the problem, and expect all software developers to work around their OS's retarded idiosyncrasies.
Windows added a package manager with active auto-updates in Windows 8 called the Windows/Microsoft Store. It has supported non-sandboxed installers since a year into Windows 10 (the "Anniversary Update"). Late in Windows 10/11 they added a useful CLI tool for it ("winget") and a bit more than just the Store. Around the same time the Store also added support for "update feeds" other than ones that the Store directly m…
The whole point of a package manager is having one place to do all the updates/installations.
But this multi-billion $ company can't use it's clout and complete control over their OS to enforce one good way of installing/updating software.