Every time I've felt like this it's been time for a change of responsibilities. Are you stagnant?
But at the same time that employer provides such job security that it allows me to travel the world (which I just started) and still work.
So that's kinda keeping me there. That is also what is motivating me to get back on track because I have a goal now, to travel, and my job is financing that, and the freedom my employer provides is making it possible.
But yeah I have been dabbling in the job market to kickstart my motivation again. But it has to be a remote-only job of course.
Are you trying to fool your own emotions that way? That part of your brain is not that clueless not to recognize that the daily life did not change, only labels got rearranged. My hypothesis is that work is more important to you than travel. And my second hypothesis is that your goal was de facto (at the time you wrote the top post) to maintain stability, i.e. to change nothing about your job.