Interpreting Louise's choice in Arrival: love, time, determinism

[HannahIJ]

I just rewatched Denis Villeneuve's 'Arrival' for the third time, and I'm still wrestling with the full implications of the ending, specifically Louise's choice to have her daughter despite knowing the tragic outcome. I understand the linguistic premise of non-linear time, but the emotional and philosophical weight of that decision leaves me with more questions about free will versus determinism. For others who have deeply analyzed this film, how do you interpret her final conversation with Ian? Does the film ultimately argue that the experience of love, however brief, justifies the inevitable pain, and how does this relate to the heptapods' gift of their language as a tool to perceive time? I'm looking for interpretations that go beyond the basic plot summary.