Moving agency to in-house was the best decision I ever made. I worked agency side for four years before moving to an in-house role. I will never go back to an agency or an office if I can help it. The pay is way better, the stress is much lower and not dealing with nightmare clients is a real game changer. Anecdotal experiences but my friends have seen similar shifts with the same move.
My job now is way more relaxed even though I’m dealing with larger budgets and increased responsibility. My day to day is similar but I have freedom to focus on what I want. Not spending half my day on clients calls is also nice.