I see Lorna being written around other characters with those characters grounding her, as Lorna being held back on her potential. Jean's whole Phoenix concept generally isn't perceived by the public as "she needs Cyclops to ground her or else she'll go haywire" after all. It's presented as Jean having tons and tons of power to a point where she can be dangerous.
I do think Lorna's character and various aspects of her can be revealed by her interactions with other characters. However, it's a matter of how those interactions are written. Secret Wars: House of M did well in showing Lorna as a smart, tough warrior leader type (though it didn't do well by Pietro, and at times Magneto) because her relationships didn't hold her back from expressing her own views, using her powers in her own ways, or being respected for taking charge of situations. Whereas most of the time, Marvel seems to think Lorna interacting with others (especially men, particularly Havok) requires her to subsume herself and put herself entirely "in their service" for their sake.
Reasons can be given to retroactively explain "here's why she was all about being Havok's girlfriend," but I think that's a lost cause and holds her back from her potential in the comics. All it really does in my opinion is remind everyone how badly she's been treated in the past and result in people at Marvel wanting to make that the entire focus of their writing of her. Usually with a goal of making the character opposite of Lorna look good. Something I think we saw quite readily in Marvel's attempts to force Havok on her in various ways throughout 2017-2019.
Instead, the focus should be on doing all the things Marvel hasn't been doing but should have been for the past 50 years (when they became applicable): utilizing her history with Genosha, letting her spend time with Jean and Iceman again and using their history, having the fact she was the second woman to join the X-Men actually mean something, restoring the twins and letting the family do things together (particularly Lorna and Wanda as sisters), exploring powers and how Lorna might use them in her own ways (especially considering her Masters degree), etc. Those things don't need Marvel to try and go "You know, Lorna being written as a damsel that locks herself in an apartment and obsesses over a man's costume is good, actually."