Bethesda has not released any item, skill, or mechanic officially named in the base game or any DLC ( Shattered Space included). The word “rune” is rare in Starfield outside of a few lore texts or mods.
If you want to play Starfield with full native audio or mix English text with localized voices, you must manually acquire and configure the external language packs. 📦 How to Install and Configure the RUNE Language Pack Step 1: Download the Separated Audio Packs starfield language packrune