What does Patent examiners do?

According to the review guidelines. If the invention patent is made public in advance and enters the substantive examination procedure, the examiner may conduct a preliminary search for the conflicting application at the first search. Your application is to openly enter the substantive examination procedure in advance. Therefore, the first search may not find conflicting applications.

The Review Guide continues to stipulate that if the examiner makes a review conclusion from the date of application 18 months or later, the examiner shall conduct supplementary search on the conflicting application in 18 months or later.

So before your case is authorized, the examiner will definitely conduct a supplementary search. However, it is hard to say whether conflicting applications can be retrieved.

I don't know if you want to ask this question. However, there is no need for the applicant to pay attention to this issue.