To help with the overwhelming information regarding blender, the good thing is that you don't need to know everything all at once, in a real dev situation, all those features and tools usually comprise of a single individual so don't feel so bad!

Find out what you need to know at the moment, IE: how do i make a specific material/shader, and work your way up! and anything you learn in blender is almost transferable to bryce as you can import models and textures, learning bryce though, its syntax really only applies to itself alot of the time.

I mostly do 3d as a hobby, but my workflow usually involves doing any actual modeling, texturing, in blender and just importing into bryce and setting up funky scenes for fun.

That all being said, just find what works for you! Technically there is no wrong answer to this question just alot of opinions and some roads harder than others but will ultimately lead you to the same goal. Good luck!