Unfortunately, the ecosystem of a tool matters more than the tool itself. One could come up with a technically superior alternative to an existing tool (gpg vs age and signify) but unless they have a widely recognised ecosystem, they tend to remain relatively niche products.

For example, Git can sign commits using gpg and x509 and now in version 2.34, OpenSSH keys. Although OpenSSH can be used to sign data, signify is a much better tool for this task.