Distribution of T bias in the R_LT (top) and R_YT (bottom) regions for one million simulated samples. The vertical black dashed line indicates the T bias needed to account for the results of M21 (ΔT_LT and ΔT_YT), and the shaded region represents its 1σ uncertainties. The p-value displayed next to it shows the probability of obtaining samples with a higher T bias than ΔT_LT and ΔT_YT, respectively.