This was absolutely true for me up to this year. What changed? I retired, and my chronic burnout started to recede (slowly). I realized that, for me, the issue

This was absolutely true for me up to this year. What changed? I retired, and my chronic burnout started to recede (slowly). I realized that, for me, the issue was learning and remembering new systems were introducing a cognitive load that I just couldn't handle on top of the load I was carrying. I know that's not directly helpful, but it may be worth looking at whether you are showing signs of burnout.