Isn't employee background verification done in the UAE?

Many of my acquaintances have mentioned about how they forged employment certificate, mentioned job titles with responsibilities very different from what they actually performed, extended their employment duration by a significant margin etc. to show relevant work experience and be qualified to apply for job openings.Moreover, fake references and contact details are arranged to confirm these details.

Back in my home country, company do a thorough background verification of the employee.

So, isn't this done here in the UAE ? Or it's just deliberately overlooked?

Don't companies try to directly reach out to the previous company in which the candidate worked and confirm details, rather than going through the manipulated reference contacts?