Is Blender the hardest software to learn?

I've been hearing a lot about Blender lately, and I'm curious if it's really as difficult to learn as some people claim. From what I've gathered, it's a powerful 3D computer graphics software that allows users to create stunning visual effects and animations. But is it really the hardest software out there to master? Are there any other software programs that are even more challenging? I'm especially interested in hearing from those who have experience with both Blender and other similar software, to get a sense of how the learning curve compares. Ultimately, I want to make an informed decision about which software to invest my time and energy into learning.