Sorry, I guess I meant Docker Desktop, and some of their other proprietary business/enterprise tools (like Docker Scout) that companies have started to use, the stuff that requires a paid subscription. The Docker engine itself remains opensource of course, but a lot of their stuff that’s targeted at enterprises isn’t. These days when companies say “Docker” they don’t mean just the engine, they’re referring to the entire ecosystem.
Also, I have a problem with Docker itself. My main issue is that, on Linux, native container tech like Podman/LXD work, perform and integrate better (at least, from my limited experience), but the industry prefers Docker (no surprises there). As a Linux guy, naturally I want to use the best tool for Linux, not what’s cross-platform (when I don’t care about other platforms). But I can understand why companies would prefer Docker.