I find that with WoTR a lot more of my companion's identity is comprised of their mechanical exploits, as opposed to their actual story beats (because those are relatively few). For example, I don't really think of Camellia as the person the game tells you she is. To me, she's defined much more by her excellent performance as a highly reliable off-tank and versatile caster/buffer, an irreplaceable cog in the machine.
This is exactly how I feel about most companions (serviceable performers) because as people they are either not interesting or outright appalling. But the game itself is very interesting and engaging.