Supreme Court Justices are brilliant, well-educated people. They likely do not consider themselves politically leaning. However, there are activist judges and constitutional 'originalist' judges. This does not mean liberal or conservative.
Amy Coney Barrett is an originalist. Her political leanings should have ZERO impact on her role as justice. She interprets the Constitution, not her personal feelings.
Speaker Tim Jones, the host of The Tim Jones Show, explains the difference.