Best way to learn front-end development as an animator?

Hello IH budds!

I'm a designer animator looking to dive into animation development specifically and development in general, I just get inspired from sites like
https://next.junni.co.jp/ - i love the 3D aspect of it
https://monopo.london/ - and I love the animation

I understand the basic structure of websites as I've been building some very basic sites, but nowhere near enough to actually be able to develop a front-end experience.

What's the ideal starting point? I'm aware of various platforms like Udemy, Code Academy, and more. However, I'm finding the multitude of options overwhelming, not only in terms of platforms but also the abundance of courses within each. Have you had any personal success with a particular platform? If you can suggest a platform, is there a specific course you'd recommend?

also if there is a good no-code solution that could actually do something like the sites i mentioned?