The Orthodox Church deals a bit better with existentialism in many ways. Dostoyevsky and Berdyaev deal with it rather extensively in their works. Unfortunately, the Western Church has never really been able to respond to it adequately. This thesis explains quite a bit: https://baylor-ir.tdl.org/bitstream/handle/2104/9348/FINAL%20THESIS.pdf?sequence=1&isAllowed=y