Yes, this mount is suitable for your 48-inch LG OLED G series TV. It is compatible with all TVs from 32 to 84 (or 90) inches and supports up to 60 kg. Your 48-inch TV and its usual weight are well within these compatibility limits. The VESA standard required by your TV is included in the standards accepted by this mount (e.g., 200x200, 300x300, 400x400). A user has confirmed its stability with a 77-inch LG OLED TV on this same mount.