I thought welfare, universal health care, etc were forms of state owned industries which socialism thought of first even though liberalism existed before socialism.

"Classical liberals also tended to argue that the economy, or some version of it, existed before or independently of the state. As a result, they maintain that the right to private property is natural and should be fairly unlimited."

https://bigthink.com/thinking/classical-liberalism-explained/

But there is a guy claiming that the definition of liberalism includes traits like welfare, universal health care, etc, so liberalism has to be credited for those inventions even though liberalism before socialism did not think of such ideas back then.

For future reference, in today's mixed economies, are traits like welfare & universal health care from socialism or liberalism? Which specific idealogy should be credited for those traits in today's mixed economies?