Can Shiba Inus be left alone?

I'm curious, can Shiba Inus truly be left alone for extended periods of time? As a breed known for their strong personalities and loyalty, I'm wondering if they'll suffer from separation anxiety or develop behavioral issues if left unsupervised. Is it possible to train them to be comfortable on their own, or is it crucial to have someone around to keep them company? I'd love to hear your insights on this topic as a professional in the field of animal behavior and well-being.