If you want to back up your Gmail emails and are facing difficulties, I am here to sort this out. I would suggest the MacSonik Gmail Backup Tool. The software lets you export Gmail Emails to PST, PDF, MSG, MBOX, and more. Also, you can migrate your Gmail to Office 365 and different email clients like G Suite or Google Workspace, IMAP, etc. This tool is capable of migrating emails with or without attachments. Additionally, you can run this software on both Mac and Windows OS versions.

To know more: https://www.macsonik.com/gmail/backup/