I am meeting all my targets so it's fine.
Easy-peasy.
However actual freedom came through building my own things. Before I build something I always ask myself if I could leave this project for a month without it suffering, so I plan my freedom in with automations. Many many projects later some worked out.
It's really common, it's so common that the average work week here is 35/h.
Most people I know work the default 40h, but as people get older they typically opt-in to work part-time.
So if you aren't from Germany, one thing you can consider is moving here. It has a good/stable tech job market. Salaries are nowhere as close to the US, but I'm sure you'll be a more interesting person after a few years here, living a more cultural diverse experience.
I initially dropped to 4 days/week in lieu of a payrise (comp remained the same). Did that for a while and since then I've been working 2-4 days/week (3 right now)
It helped that it was a small company and I had been working there for 5+ years, not sure how I'd go about finding a part time software job otherwise. Everything is negotiable though.
For the past 7 years I’ve worked around 1200 hours per year on average
If you have been in FAANG or part of startup that exploded or went through IPO, then you value time.
This is unfortunate but this is the truth.
2. Gaps between jobs.
I am looking into how I cam earn $200 plus/h consulting (double if I need to market to find work).
Then 20h/w is enough.
* Increase your skills. I spend a lot of time writing ambitious personal software. I have learned to measure things and challenge common assumptions from that personal software. Time and effort are different on personal projects because you aren’t getting paid, so you learn to minimize tech debt and time waste to maximize for learning and experimentation. At the day job you just do the tasks assigned how they want you to do them. I always try to hide my personal resourcefulness and criticality and just fit in, but given enough time employers will always see that you struggle less and are severely under utilized.
* Be extremely gifted at written communication and detail orientation. Nothing increases your free time like pushing back on incomplete ideas and assumption elimination.
The bottom line is that if you want to spend 7 hours of your work day watching television or playing games then you need to get all your work done in less time, ensure clarity around your assignments, and ensure management values you enough to provide you increased flexibility.