https://en.wikipedia.org/wiki/Socialism:

Socialism is an economic and political philosophy […] characterised by social ownership of the means of production, as opposed to private ownership.

I’m not gonna lie, I don’t think a common-good healthcare regulation or whatever housing plans fall under the definition.

Edit: there’s some merit to this you could’ve brought up, e.g. Germany’s mandating by law of some (limited) worker control in firms ≥500 employees in size (wikipedia link). But even that’s breaking with the definition, since it’s not about ownership, but rather a say in leading the company.