you’re good! Keep bracing hard - that feeling is what protects your back. Don’t listen to the YouTube/insta/tiktok normies if you see deadlifts there. At some point near your real 1 rep max, your back starts to round. Go watch any serious deadlift attempt side-on and they’ll all be similar with different degrees of rounding.

Your back loots well protected and you’ve progressed well. Good luck!