>>1019576
Sculpting from scratch is a spook, you'll mostly just want to use its basic functions for mesh editing
Unless your end goal is figurines, everyone else uses retopo'd base meshes and adjusts them there or Vroid>Blender for anything other than games (though using Vroid meshes as a base mesh to then retopologize is a valid option as well).
https://www.youtube.com/watch?v=DjqY4shuozs Even Shonzo uses a base mesh and it takes her like 12 days regardless. You need to know how to use sculpt tools but you don't need to learn how to sculpt.
Also, learning topology from these types of videos is really bad, you're better off learning good topology from topology videos like https://www.youtube.com/watch?v=kKngmeLhI54 to get the fundamentals down
>>1019609
It's mostly easier, don't listen to the other guy. Genshin is only deveptively generic, the shader is retardedly optimized and utilizes things like subsurface scattering and weido matcap normalmap replacements. Your example mostly just looks like hand painted textures which mostly requires artistry rather than a 3d skillset. They're perpendicular paths; do you want to hand paint a face or autiscially adjust its normals?
Also, sculpting is easier than polymodeling in my experience at least, but it might be different for different people.