Steam Deck handheld gaming device, installing mods for BG3 (Baldur's Gate 3), user interface, mod management, fantasy RPG game, custom content, enhanced textures, character skins, gameplay tweaks, Steam Workshop integration, third-person view, interactive environment, medieval setting, high-resolution graphics, detailed character models, dynamic lighting, volumetric fog, immersive sound design, expansive world exploration, seamless mod installation, user-friendly mod interface, portable gaming, on-the-go modding, community-driven enhancements, diverse character customization, strategic combat system, rich narrative experience, epic orchestral soundtrack.