Not well enough because it's impossible. The game's appeal and the core gamepay is the sandbox and trying to shoehorn a preset personality into that is self-defeating. Look no further than the disastrous attempt to add a "main quest" into Bannerlord, where the devs had to capitulate and add an option to outright skip it.
Aw man...I was looking forward to the JRPG progression
First mission: kill that scrappy pirate frigate
Final mission: kill the machine god
But yeah, less characterization feels more functional to me than more, however it might be a very niche opinion that's why I wrote in the general discussion thread instead of suggestions.
Not really expecting changes to be made, but talking about it is fun and could be worth wondering about it for further interactions (whether to double down on the space badass or have it toned down slightly).
The parts when you are given more playful or comedic options are my favorites, keeping that underlying tone of comedy helps with mellowing any dissonant situation, while a more dramatic tone makes them harder to accept.
I forgot to add that the "multiple characters smashed together" were smashed together haphazardly. Your character feels like a shell with several personalities that fight over control of your body instead of a single unifed seemless whole.
Not to mention that Picard mode feels too much like a Sue. Perfect for your overpowered shonen protagonist.
Previous releases had no or minimal personality. Good for sandbox. Now, might as well go the full jRPG character driven story and abandon the sandbox partially or wholly.
I assume some of this is meant as an exaggeration, but it gets the point across. If you want the character to be so "flawless" then more comedy is needed to make it appeal less to power fantasy, and more to absurdity and amusement, otherwise you risk ending up with a less mature product than what was meant.
There's nothing wrong with shonens, nor with OP protagonists, the crux of the matter is whether that's intended or not, and if it isn't then pointing it out might be helpful with achieving a more cohesive narrative.
Its also important to add that this isn't a criticism to writing skill (ability to convey what is wanted through writing), especially with scene descriptions the environments really come to life. But its a disagreement writing decisions (how certain factors within a story are depicted). As such, in the end its all a matter of taste about story crafting.