first technical round for unity-xr role started with small intro , questions on oops and then unity game development basics and core and Csharp concepts like inheritance, access modifiers in details , second technical rounds again started with core game development basics and then 1 small task in unity itself on "have 3 objects like cube cylinder and when two objects collide , make the third one disappear from scene" ....great interview very understanding even if you don't know all the answers.