When it comes to the teachings, practices, and traditions of the Catholic Church, you'd be hard-pressed to find something that actually did originate with them. Actually, it's probably impossible to find a single thing that originated from the Catholic Church. This is because of the Roman tradition of incorporating the traditions of surrounding cultures into their own. The Catholic Church began as an extension of the Roman government, so it should come as no surprise that they continue that tradition.
Here's how this hijacking works. When the Catholic Church wants to make "Christianity" look more appealing to the masses of whatever culture they encounter, they adopt the pagan practices of that culture and modify it to look more "Christian". We know from Deuteronomy 12 that God does not accept his people worshiping him the way the pagans worshiped their gods. Yet this is how we got Christmas, Easter, Good Friday, Halloween, Sunday Sabbath, etc. All of these are pagan traditions modified to look Christian.
Not all practices come from the pagan cultures. Some actually did come from Christianity, which came from Judaism. The Catholic Church corrupts those practices as well. Baptism is one example of a Christian practice that was hijacked by the Catholic Church. Another example is the birth, life, death, and resurrection of Yeshua (Jesus), and some of his teachings. Since the Catholic Church is trying to look Christian (though they are actually pagan), it should be expected that they hijack some Christian practices and teachings. Because convincing deceptions use truth to gain your trust. By the way, the Catholic's "Mary" is actually the pagan goddess Diana, which also makes the Catholic "Jesus" a pagan deity, which they make to look like the Jesus of the Bible.
Going off of Isaiah 1:12-15, we can clearly see that when we mix God's instructions with man's traditions, God counts all of it as man's traditions, and despises them! Yet this is exactly what the Catholic Church has done with Yeshua. When Isaiah proclaimed that all the feasts that Yahweh proclaimed to Israel were despised by the one who proclaimed them, the people must have been very confused as to why. After all, God proclaimed them, so he must be pleased when we partake in them, right? Unfortunately, they fell for the same trap that their ancestors fell for 1,000 years earlier: When you make a golden calf to Yahweh, you aren't worshiping Yahweh, you're worshiping the calf! Likewise, when you mix the practices that Yahweh commanded with human tradition, you're not practicing what Yahweh commanded, you're following human rules. Isaiah 29:13 points this out quite clearly, which Yeshua later quoted in Matthew 15:8.
Because the Catholic Church hated the Jews, they did everything in their power not to adopt any of their practices (biblical or otherwise). This is why instead of remembering Yeshua's death on Passover, they do it on Good Friday, and why Good Friday almost never falls on the same day as Passover. This is also why they don't keep the Day of Atonement, or the biblical Sabbath (Saturday), or the Feasts of Trumpets, or any other day that God has appointed. In fact, they even outlawed the observance of such days under penalty of death! By the way, to the best of my knowledge, this is the only exception to the rule.
To summarize: If something appears to have originated with the Catholic Church, then it is certainly a hijacked pagan tradition or teaching that has been modified to look Christian. And even in the rare instances where the Catholic Church actually did invent something rather than adapting an existing pagan practice, it's still pagan because it came from the Catholic Church. And any practice or teaching of the Catholic Church that appears to come from the Bible is certainly a corrupted version of what the Bible actually teaches. Discernment is needed to distinguish between the Biblical teaching, and the Catholic counterfeit.