The Line Art modifier is great (if you want to render NPR style in Cycles), but it can be quite resource-demanding.
Jan van den Hemel writes:
I made this video about baking the modifier to a normal Grease Pencil stroke. This is no longer affected by the camera position, so it also only looks good from the Camera perspective.
It can be useful if you plan to tweak the outline strokes manually, erase parts, or add strokes manually using the normal Grease Pencil tools. I think for 2D animation this can be a very powerful workflow.
