Roles

Workflows is long because it is complete. Very little of it is yours.

Pick the page that matches what you were hired to do. Each one gives you a handful of pages to read,
the tools you need, a first task, and the mistakes that cost the most time in that discipline.

Role You own First task
3D Artist Meshes, kits, textures, materials Make a Prop
Level Designer Scenes, layout, gameplay placement Build a Level
Audio SFX, music, ambience, voice over Add a Sound
Content & Writing Dialogue, narrative, text, translations -
Programmer Engine code, in-house tools, packages -
Doing two of these?

Small studio, so most people do. Read them in the order you will actually need them, and don't try
to hold both at once on day one.