Probably people in Korea or even nProtect themselves.
That said, fixing a bug related to software incompatibility with Wine might also benefit other applications (since Wine may behave as “expected” as it runs on Windows). This is why they even tested Audacity to run on Wine even that a native Linux version is available.
They do encryption at rest too. Really good notes app and it’s cross platform too. Only missing a “web” client for when you want to access your notes on a computer without Joplin installed (but that defeats the purpose of the E2EE IMO)