Yes, Tobias, today I am even more convinced that it is heterophthalmus.
You have provided one of the discriminants with respect to lineatus / nigripalpis, I see another in the "face" of the adult spiders of this group, which is completely hairless, clear opaque and furrowed by two thin parallel (or almost) longitudinal lines.
And ramosus has ringed legs (but I don't know if this is also a characteristic of youngs).
There are no other species in Italy.
My spider has a hairy face with typical hetero colors and patterns and only slightly spotted legs, like hetero (see wiki).
But it is a juvenile; Tobias, can I get a cf. from you?
Raf