Catholics and Orthodox

Hi, I’m interested in learning more about Christian theology. I’ve read many arguments why Orthodoxy is true, but I haven’t seen much from Catholics(because there are few Catholics on the RuNet, I've even seen Orthodox teenagers, but there are no Catholics at all). I’m not looking for a debate — I just want to understand the reasons your Church believes it represents the truth. I’d love to hear perspectives from Catholics and Orthodox Christians alike.