I don't have anything for this season, but Ja Morant had the highest usage percentage for the Grizzlies in 2020-21, at 27.1 percent.

who gets the most usage on the grizzlies this season
Interpreted as:
Who gets the most usage with a minimum of 1000 minutes played per 82 team games on the grizzlies this season?
2020-21Morant2020-21Brooks2020-21Valanciunas2020-21Melton2020-21Anderson2020-21Clarke2020-21Allen2020-21Jones2020-21Bane2020-21Tillman27.126.222.419.518.417.216.816.716.214.3
NAMESEASONTMGPUSG%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Ja MorantJa Morant2020-21MEMMEM6327.132.619.14.07.40.90.23.26.815.244.91.23.830.34.35.972.82,0531,204252465571320387+108
Dillon BrooksDillon Brooks2020-21MEMMEM6726.229.817.22.92.31.20.41.86.415.441.91.95.634.42.42.981.51,9971,1511961577826119237+153
Jonas ValanciunasJonas Valanciunas2020-21MEMMEM6222.428.317.112.51.80.60.91.67.112.059.20.30.936.82.53.377.31,7551,0587761123557100179+134
De'Anthony MeltonDe'Anthony Melton2020-21MEMMEM5219.520.19.13.12.51.20.61.33.37.643.81.74.141.20.81.080.41,04547216113260316685+119
Kyle AndersonKyle Anderson2020-21MEMMEM6918.427.312.45.73.61.20.81.24.59.546.81.43.836.02.12.778.31,887854396250845786120+51
Brandon ClarkeBrandon Clarke2020-21MEMMEM5917.224.010.35.61.61.00.90.64.38.451.70.31.326.01.31.969.01,4156103289560513384-17
Grayson AllenGrayson Allen2020-21MEMMEM5016.825.210.63.22.20.90.21.03.58.341.82.15.539.11.61.886.81,2595321601084684871+8
Tyus JonesTyus Jones2020-21MEMMEM7016.717.56.32.03.70.90.10.72.55.943.10.62.032.10.60.691.11,2224421402596464831-85
Desmond BaneDesmond Bane2020-21MEMMEM6816.222.39.23.11.70.60.20.93.47.346.91.74.043.20.60.781.61,519625210118411659125+12
Xavier TillmanXavier Tillman2020-21MEMMEM5914.318.46.64.31.30.70.60.82.85.155.90.41.133.80.60.964.21,08539025675443345116+33
StatMuse has season-level data for usage percentage going back to the 1977-78 season.

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