According to FRESC, the total number of consultations from foreign workers between 2020 and 2024 was 423,248.
Of these, about 39.3% were related to "human rights issues" and "labour issues" such as unpaid wages, dismissal, and power harassment.
Reference: Foreign Resident Support Center (FRESC)
https://www.moj.go.jp/isa/support/fresc/12_00007.html
Common topics of consultation regarding employment issues include the follow.