Is it insincere to delay recruiting an employee?

Let's put ourselves in others' shoes. When looking for a job, we will only submit a resume and wait for an interview notice and results from a company. Of course not, so there are two possible situations.

1, preferred company. As one of the alternative companies, all the conditions are satisfactory, but it is not the company I want to go to most. The employees are waiting for a reply from their favorite company. If they don't get the offer, they will come to the company to sign the contract immediately.

2. Both are alternative companies. But there are other options, wait for the reply from other companies, and then comprehensively compare which one is better.