Are you streaming the data or loading it into RAM? Workers (and Pages) has a limit of 128MB of RAM so if you get close to that limit then your Worker will be terminated.
I'm clueless even if this is where I should be asking. I cancelled Google Workspace (thinking I didn't need what they listed) and now I can't get into my email. Can anyone tell me how to fix it within Cloudflare go I can access my email? I found something about "Deploy and configure Google Workspace with Area 1 as MX Record" in the docs. How do I undo it so it doesn't go through google?