>>10306986Catholics and Orthodox have a few theological differences. Then the Eastern Orthodox churches reject the papacy, which was okay for a long time, but now they got into a conflict and two EO churches excommunicated each other. Wouldn't it be great if there is a final authority that can say who's right?
The Catholic Church follows a lot of the teaching of Thomas Aquinas, I recommend you look him up.
The main theological differences between Catholics and Protestants are these:
initial grace (baptism) + sanctifying grace (continuous journey with God) vs. justifying grace
classical theism (Divine Simplicity) vs theistic personalism
faith + acting accordingly and going to confession if we mess up vs. faith alone + private repenting
established authorities vs. sola scriptura
strict hierarchy vs faith guided communities
and many more...
I recommend looking up Bishop Barron, Matt Fradd, Sensus Fidelium as an introduction. They are normie boomer-tier Catholics, but they are okay.