Actually solving leetcode problems or studying some fundamental things helps to think differently. It also improves the language coding ability.

I heard from one Engineer, and I like his quote, but I forgot his name from a Podcast.

He said, if you want to use the ReactJs framework, you don't need to know much about algorithms or computer science background.

But,

If you want to build a framework like ReactJs, you need knowledge of algorithms and data structure.