Test the job market: apply for three jobs.

Three plausible jobs, not dream jobs.

First, do this over the next month. Then pick real roles you would take if you were simply moving, not escaping. Also, avoid dream jobs and avoid obvious downgrades. Next, apply properly, with a real application, in your own name. Since you only test the job market to learn, the offer is not the point. Instead, the point is what happens in you.

What a lift or a flat chest tells you.

For example, somebody replies, then there is a call, then a second. Now, if you feel a lift, you might not need the other plan at all. As a result, you learn you want to leave this employer, not employment. However, if the first Monday makes your chest go flat, that is information too. Still, it is not proof.

The cost when you test the job market.

Of course, you will take up a recruiter's afternoon and a hiring manager's hour. In addition, you may displace somebody who actually wanted the role. If that sits badly, then the paper version costs nobody but you. In that case, write the applications, research the companies, then imagine the offer arriving on Friday afternoon. Also, in most places your employer may legally act if they discover you are looking.