Newbie Question: Gutenberg, Kadence or Breakdance?

Hello everyone; I'm about to build a website for my business and have my domain name and hosting, WP installed. I've only got some very limited experience with WP, except years ago I built a business page for my ex using some type of page builder. I've also got some very basic experience from building a landing page with Elementor.

I'm on a very tight budget, otherwise I'd probably go for some pro version of a framework or theme, but unfortunately, that's not an option for me right now.

So browsing here on Reddit, I've seen some people recommend learning Gutenberg Blocks, and some people recommend Kadence or Breakdance, both of which have free version.

I'd love to hear from you guys what you recommend for a beginner like me. Are there any drawbacks of using the free versions of Kadence or Breakdance, and which one would you recommend? I've read somewhere that some free themes and page builders can contain hidden text and backlinks that may be penalized by SEs. Is Gutenberg that hard to learn? If not, I might not even need Kadence or Breakdance.

I found a YouTube channel by Jaime WP which goes into some detail about using Gutenberg Blocks. I only watched one of the tutorials, but he did a really good job of explaining. Do you guys have any recommendations for tutorials on Gutenberg/Kadence/Breakdance?

I'd appreciate any input. Thanks in advance!