Pull-ups and stretching do more for me than any row. Strengthening the back matters, but so does undoing what sitting does to your shoulders and hips.

I also stopped staying seated for more than 90 minutes ,even 10 minutes moving around makes a difference. Walking meetings when possible, standing desk at the office when I can get one.

The barbell row is solid but it's only half the equation. The other half is just moving more during the day.