3840 × 1600
UltraWide QHD+3840×1600 — UltraWide QHD+ — is a ≈ 21:9 resolution with 6,144,000 pixels. Its ultrawide shape fits three full-size windows side by side.
A 38-inch-class ultrawide that adds both height and width over 3440×1440 — effectively a 4K panel with the top and bottom trimmed off. It's a productivity favorite: two full documents plus a sidebar fit comfortably.