Do companies typically contact an employee's previous manager to check their conduct?

I’m wondering if when applying for a new job companies will contact your previous manager to get a sense of what kind of employee you were.

Different companies have different policies and procedures in place for conducting background checks on prospective employees. Some companies may indeed contact an applicant’s previous manager to get a sense of their work ethic and conduct, while others may rely solely on references provided by the applicant. In some cases, companies may contact both an applicant’s previous manager and references in order to get a more well-rounded picture of the applicant’s skills and character.