Recent graduate developer hoping for a break in this tough market

Hi everyone. I am a recent graduate and a fresher. I have one mass recruitment offer but still no joining. Even though I have a good CGPA around 8.5+ I am facing difficulty getting a job now.

I did an internship in Bangalore and after that they gave me a regular offer but I rejected it because I joined an early stage startup as a founding engineer. The founders were from good companies like Amazon and Microsoft so I thought it would be a great opportunity. I worked almost one month there. I asked for some decent pay and they agreed but later their idea did not work and they were not able to sustain. Everything became confusing and I had to leave forcefully.

Now I am again searching for a job. I have been applying for three weeks. I know skills but in today's market it feels like it does not matter. Also it is November and December time so maybe the hiring will freeze. The main issue is I am not getting replies at all. Just auto rejection after applying in more than 50-60 companies daily. Some companies say I am unfit. One funny thing happened that I gave a full stack engineer interview and they asked me how can you answer all the questions like they did not believe me.

My profile is developer. Mostly full stack and backend. Earlier I also worked on app development. I even have some experience and knowledge in Salesforce. I know it looks different domains but I worked on those and have practical experience.

If anyone can refer or guide me what to do please help. Any openings also please let me know. You can DM me also. Thank you for reading.