Liberalism vs. Leftism

Just to add a little bit to it:

"The greatest good for the greatest number", a basic leftwing principle, sometimes collides with "everybody should be free to do what they want with their own things and willing adults", a basic liberal principle, for example when it comes to some people excessivelly hoarding resources or using their ownership of an exclusive resource to extract rents from others, because it goes against the "greatest good for the greatest number" even whilst it is aligned with the whole freedom to do what they want with their own things.

At other times both are perfectly aligned: for example when it comes to the freedom from discrimination for those with a different sexual orientation than the majority, since that freedom both fulfills the "the greatest good" principle and the "freedom to do what they want" one.

Now, if one really digs down on it, maximum freedom turns out to actually require different ownership laws (if exclusive resources have owners rather than being shared, then the freedom of the non-owners is being restricted), but in decades of following and even being involved in politics, I have yet to hear a single Liberal (even those who supposedly are not Neoliberal) even mention that specific form (probably the most widespread and highest impact one) of restriction on the Freedom of most people, much less suggest changing it.