PIK3CB and neoplasm: T cells on the Tex and Tmem trajectory in the PI3K/mTORi+PD‐1i‐treatment condition had lower mean pseudotime scores compared to the other treatment conditions (Figure S3H), suggesting that the enriched T‐cell population in the PI3K/mTORi+PD‐1i‐treated biopsies are characterised by more pronounced effector function and early exhaustion, while tumour‐infiltrated T cells in the PI3K/mTORi‐treated biopsies are more terminally exhausted.