I quit my previous job earlier this year because I got a freelance job which was paying much higher and had flexible work hours. I was able to travel a lot during these 4 months and also worked on a couple of long due personal projects during free time. Now that I am done with the freelance job, I want to start looking for a full-time job again. Now my question is, when employers ask me about this gap, what should I tell them? Should I be honest and tell them that I quit my full-time job for a higher paying part-time one? Wouldn't that give the impression that I am only bothered about making money and may quit this new job too if I get another high paying freelance job? Or should I say that I quit due to some personal reasons like to take care of an ill relative or simply to take a break from routine work life? Would that seem like an obvious lie and even make them think that I was fired from my previous job?
I would also be launching one of the personal projects I worked on during this gap on Play Store within the end of this month. The other project is for personal use only and won't be released anywhere.
Note that the domain of work of the freelance job is the same as the previous job and the jobs I would be applying for in the future. But it does not have a work experience certificate from the client.