While not directly related to force labor, Microsoft did identify from its audit the following:
A breakdown of the investigation and remediation actions taken to address the 30 Audit Findings associated with workers having paid recruitment or employment fees is as follows:
▪ 23 Findings: Workers paid a health exam fee as a condition of employment.
▪ 4 Findings: Foreign workers paid a recruitment fee as a condition of securing employment.
▪ 2 Findings: Workers were charged for uniform fees or cleaning fees.
▪ 1 Finding: Worker not provided return transportation to his/her origin or reimbursed for
cost of such trip after employment ended.
However, because there is no direct mention of LinkedIn I support the answer "no" to this question.