And there's also the advantage of having a current job, instead of an increasingly larger jobless gap that not only decreases your chances over time, but also contributes to the cycle of "less chance -> wider gap -> increased anxiety -> less chance".

Fumble the first few months due to a combination of a lack of interviewing practice, and of job postings that never intended to hire anyway or that are looking for someone that checks literally all their shopping list of boxes, all while still dragging you for a 4-8 journey, and suddenly your position is not that good anymore.