In most of Europe what the employment contract says must be compared to local law - it varies greatly how many rights you are able to contract away in an employment contract.
E.g. while employment contracts in the UK are often fairly long, employment contracts in Norway can be as short as a couple of paragraphs, as almost all the terms are regulated and are costly and/or difficult to deviate from for most roles and most additional terms you might add will be null and void.
E.g. while employment contracts in the UK are often fairly long, employment contracts in Norway can be as short as a couple of paragraphs, as almost all the terms are regulated and are costly and/or difficult to deviate from for most roles and most additional terms you might add will be null and void.