I am learning web development, and in the process of taking inspiration for UI online, I came across gumroad.com. Its design is bright, colorful, blocky, doodly, etc.
I want to learn about this design, but due to my lack of knowledge of design terminology, I do not what is it called. A friend told me, its called outline design, or bubble design; but Google search with those keywords is not very promising.
Randomly searching on google gave suggestions like "brutalism", "bauhaus style" etc.
I am really confused because I do not know what any of this is called, where to even begin google search, and how to even ask questions about it.
I would really appreciate if someone can explain what the design theme of gumroad.com is called, if design theme is even the correct vocabulary, and where can I learn and study that design style.