Some smugness in the fedi re #Australia ban on DeepSeek. Apparently, it's because DeepSeek is #OSS and apparently 'you can't ban OSS'.
No, OSS licenses are a creature of local law, usually copyright and/or contract. They will usually be subject to other local laws, including any content or usage ban, like the one in Aus.
It's not helpful to think of OSS licenses as 'rules' that apply everywhere in exactly the way they are drafted.