A temporary email address is generally a poor fit for job applications because recruitment can involve communication over several weeks or longer.
Employers may send interview invitations, assessment instructions, document requests, or an offer to the address on your application. If that inbox expires, you could miss a time-sensitive message.
A lasting, professional email address also provides consistency across your CV, application profile, and later correspondence. This helps recruiters recognize your messages and locate your application.
If you want to keep recruitment separate from personal email, consider creating a dedicated lasting address for job searches.
Temporary email may have a limited role when browsing a publicly offered career resource, provided the service permits it. For an actual application, choose an address you check regularly and expect to retain throughout the recruitment process.