Laptop pixel error?

My cat jumped on the closed laptop and now black lines appear on the display.

can someone tell me roughly whether a repair would be worth it and how expensive it would be?

That depends entirely on the device - you can usually start from 1/3 of the new price. At least 150 - 300 euro if it is done properly.

PS: I would not necessarily post your real name and Microsoft account here publicly.

Besides, you may not want to show your email address.

That being said, this is a display damage. Since you can only replace the display completely, how much it costs is always different, but it is usually not worth it.

Currently see prices from 130 euro to 180 euro with one provider.