Dare to leap?

Hi All, I would like to know some opinions here. My friend is working in an Z company, He has 3 years of experience as a Software developer.Recently the company hikes weren’t good. Its not to do with recession, but it got merged with another company whose hike % as per there policies are generally low. His work is also kind of getting saturated and he was complaining of toxicity of management as well. So he decided to resign as the notice period was 3 months, and if he get a job offer no one’s going to wait for him for 3 months. Hence i supported his decision, as 3 months is a good amount of time for preparation and getting an offerNow at the worst case if he did not find a job in these 3 months, will it become more difficult after that, is having a little gap of no work is bad these days?? What do you guys think?? play safe or dare to leap?