I have been on a long journey from 25+ % bodyfat to 11% and also packed on a lot of muscles. Now, I never feel satisfied, but there is a point where it is sane, to let it go.
But I don’t want to give up working out. I like it too mucu for that. What could be some new goals, that don’t interfere with my gains. I want to keep them.
When I started lifting, I was in my early 20s, when I had similar goals as you and a tremendous amount of free time.
By the time I hit my “target”, life started getting busy and my free time was replaced by various obligations.
For me, the desire to continue lifting shifted from a goal body to having an hour a day that was 100% mine. Maybe that could work for you as well.
The ever-present fear of losing all your progress also helps.