Doubts about the Vertical SaaS trend 🤷‍♂️

Hey everyone! Just wanted to reach out and ask for some help as I've been exploring the vertical SaaS opportunity but had some doubts...

1. Can one scale a vertical SaaS using no-code tools like Bubble?
2. What types of people are vertical SaaS startups best suited for? Do you need to be super technical?
3. What are the main benefits and challenges of operating a vertical SaaS business?

Just want to understand a bit about the hype and the opportunity as I'm wrestling with a vertical SaaS idea and a mobile app idea, and would love some input from the community :)

Thanks for the time and help!