I couldn't find anything for this season, but Jordan Poole sank 42.6 percent from the field after the All-Star Game in 2020-21.

jordan poole fg% after all star break
Interpreted as:
Jordan Poole fg% after all star break this season
NAMESEASONTMGPFG%MPGPPGRPGAPGSPGBPGTPGFGMFGA3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Jordan PooleJordan Poole2020-21GSWGSW3542.623.414.42.02.40.60.21.24.811.32.36.534.82.52.886.981850371852264372+36
StatMuse has game-level data for field-goal percentage going back to the 1982-83 season.