Even though I work a relaxed 36 hour work week and rarely do anything work-related outside office hours I still encountered many of the issues related to burnout. I've wondered why for quite some time and this article pretty much nails where these feelings where coming from.

Fun fact: Even the process of interviewing at other companies seemed to help. Looking back, I think it's because most interview processes contain tests that required me to spend a few hours solving (complex) problems with code.