Seemingly out of nowhere a long insect creature appeared (jumped?) on my PC screen and startled me. Seems to have 6 legs and antennae. Moves slowly, but apparently has a very strong grip. Its size is about 2.5cm (1") The bug was found in the capital city of Bulgaria, EU.
An app identified it as a house cricket and then a box bug, but while it does look like that I couldn't match a picture that looks identical.
Looks something between an adult gonocerus acuteangulatus and rhombic leatherbug but it has longer and thinner body. Most likely in the family Coreidae.