Hi! I am a full stack developer -- MERN, Django specializing in backend, I have seen many people using platforms like wordpress, shopify, drupal, flutter to make websites rather than coding everything from scratch.

I genuinely have no experience with these apps and want to explore these things.

I learned PHP and how it works recently to understand drupal but I am not finding any good resource to learn drupal, can any gentlemen or woman help me with their knowledge from where I can learn about Drupal architecture?

TL, DR: Looking for drupal learning resources.

Thank you !