Ownership of files after transfer between workspaces

Hello Figma Support,

We recently transferred part of our Figma projects to the new workspace. We noticed that around 100 files still show the previous owner as: user@company1.com

However, when we open the sharing settings and check “Anyone in [project name]”, we can also see the owner/account listed as: user@company2.com

We want to make sure we handle this correctly and avoid making any files ownerless or inaccessible. Could you please advise on the fastest and safest way to transfer ownership of these files from user@company1.com to user@company2.com?

Specifically, we would like to understand:
Is there a way to bulk transfer ownership for approximately 100 files?
Can this be done through the Admin Console, or does Figma Support need to perform the transfer? Would removing or deleting user@company1.com from the organization automatically transfer ownership, or would the files become ownerless?
Is the project-level owner shown under “Anyone in [project name]” enough to ensure the files are safely owned by user@company2.com, or do we still need to transfer ownership at the file level?

Our goal is to complete the ownership migration as quickly as possible while making sure no files lose ownership or access.

Thank you in advance for your help.