Most large employers have employee handbooks, those set of policies that explain things like vacation and sick leave, discipline, etc. Employers will often describe how they are “binding” and must be followed. But, legally, they are not binding, at all. They look thorough and professional and provide some comfort to employees in an uncertain world.
They are generally not binding on the employer. They are nothing more than a guideline. If the employer included a phrase providing they are not contractual, then they will not be binding. And, most, perhaps all employers do include non-binding type language in the handbook.