If you’re using 365, OneNote can sync to the mobile app and vice versa. This will all depend on how your company sets up MDM\MAM but if the 365 suite is MAM enabled you could install that on your personal iPad. You wouldn’t be able to copy to\from your physical device, but everything is synced up to SharePoint so that’s all you would need access to.
Looks like I cancelled at the right time. They seem to forget that we in fact do have a choice at the end of the day. And my choice is to sail the high seas.