What are typical track lighting track profiles used in Europe?
There are two "standards" I know of.

One is the professional three-phase system used by ERCO, Staff, Zumtobel, Eutrac and Global. Other companies are selling lamps for the system, too, it's widely used in shop-window and architecture lighting. Rails may differ in outer dimensions and are generally not compatible to each other.

The other "standard" is the much simpler Urail system introduced by Paulmann, which is sold in hardware stores.