Migration without using the upgrade wizard

Good afternoon everyone. I wanted to inquire if it is difficult to migrate from an older version to the latest one in SuiteCRM without using its built-in update tool.
In other words, installing SuiteCRM 8 from scratch and migrating all the information from modules, records, and custom modules to the new instance.
This decision is due to time constraints as there are some technical issues preventing us from using the update tool.
Thank you very much, and I look forward to your comments.