Have an interview coming up, how to prepare for frequent switching question?

Hi,

I have almost 10 months of experience as software developer in 3 companies one internship, 2 full-time. First 2 was absolutely initial-stage startups, this one is a seed-funded startup. In my current company the culture and the manager is really nice. I work as a backend developer, node, MongoDB, express, genai, auth, etc. tech stack. But the work does not excite me at all, I was enjoying at my previous company a lot more. That was young team, so everyone was new to tech and trying to figure out things and was helpful and collaborative. Here everyone is in their 30s and 40s and I am 23, no one even cares of what I work and how difficulty I am facing in work/team. That's why I fear of losing my job every day and I am still on my probation. So I thought of applying in case I get laid off. I got an interview opportunity at company. I want to ask what should I answer if the interviewer asks me about the frequent switches.

In first company I switched because the company is like 3 people and no funding was received so only 3 more months of money remaining( btw now only the founder left and he is still trying to raise money, my other colleague left too). So what should I give a reason for this potential switch?

Current perks: 6LPA base. Nothing else.