Upper panel: redshift distribution of our sample of SMUVS/MUSE sources with spectral QF  ≥  2 in blue. These objects constitute  ∼ 66.5% of the 1038 SMUVS objects identified with MUSE, and ∼23% of all the SMUVS objects in the COSMOS/MUSE GTO field. The distribution of all the SMUVS redshifts in our MUSE fields is drawn in red and renormalized to the number of MUSE sources detected with QF ≥ 2. Lower panel: distribution of spectral QF for the 1038 MUSE detected sources. The dashed line indicates the boundary between a secure and an uncertain redshift measurement. Quality flag 0 was assigned to all galactic stars, independently of their actual spectral quality.