when im starting Defold as a beginner, do I have to start with tutorials or manuals or any other learning resources?
You don’t have to, but going through the tutorials is the easiest and fastest way to learn.
The introduction manual has a good “Where to start?” section.
You don’t need to read through all the manuals right away, you’ll probably want some hands-on experience before they will make sense and you will remember things. Eventually you will end up reading through them several times though. I’ve been using Defold for a few years, and I still refer to the manuals periodically.
The official examples are pretty good for quickly learning specific bits and pieces.
There’s also a GameFromScratch tutorial series and a pretty new intro series on youtube.
You can try searching the forum for more specific problems you run into.
The Book of Defold is a good place to learn.
You can try this video tutorial series as another source.