Zapier is very easy to use - everything you want to do/learn is in the no-code interface page, no need for reading documentation. This (as a developer myself) seems very complex to use. I have to read each integration's library, and also use Typescript (why not JS or something more popular?), at which point, I may aswell just write code and use an API.
You can use JavaScript and will have a great experience – all of our code is in TypeScript which means you get a really nice experience as either a JS or TS developer.