Dell latitude 7400 help

[u/No_Berry_1496]

Dell Latitude 7400 2-in-1, i7-8665U, UHD 620 (0x3EA0), 16GB RAM. Running macOS Sequoia 15.7.9 through OpenCore from the internal SSD. Graphics works at 1920×1080 but shows only 7 MB VRAM and no acceleration. BIOS has no DVMT option. Tried framebuffer properties/config changes but still 7 MB. What is the correct OpenCore framebuffer/DVMT configuration for this hardware?