Is Lean Startup still relevant in 2025? What are the fresh competitors?

I have quite a pile of books looking at me and I'm not the fastest reader so it's important for me to chose carefully what to read. Your advice is greatly appreciated.

If Lean Startup has been superseded I'd love to hear what you read. I never created any startups so I think I'm the target audience of Lean Startup so suggested competitors should be at a similar level.

Thanks all!