This happened to me after the company I was working for was acquired by a much larger one. The pandemic, working from home, the constant internet feedback loop, coupled with little meaningful or enriching work caused me to resent my job in secret all while being promoted and constantly praised by my superiors as doing a great job. The most depressing days were doing nothing at work only to log off and do the same thing in my personal time - nothing. Benefits and pay (I call the golden handcuffs) persuaded me to stay at least a year later than I should have. Quitting my job for a company that does impactful and meaningful work for less money and benefits has been super freeing and my love for computers and thirst for knowledge returned almost instantly. Sometimes you get so focused on optimizing for the most comfortable job that gives you the best return on your time that you lose site completely on your happiness.