they may ban particular extensions in regions, it should be doable for majority of public. it wouldn't be a complete ban, they can't really do that, but roadblocks will be enough to deter people
If it's not fully supported and has major roadbumps, which it has, it is not supported. I don't know why companies take linux users as fools that'll accept anything thrown at them. Until lenovo can get their shit together and make a respectable laptop with 12h+ battery life, good build quality and a decent enough screen even on the worst configs, im not getting it