For me, I tried for months to send illustrations back and forth between Photoshop on my MBP, and Procreate on my iPad Pro, and constantly be unable to find them once they made it to iOS. The last straw was trying to install fonts on my iPad… having to navigate between AnyFont, then import to garbage-iOS-version Photoshop, then try to share with Procreate, when all the apps are sandboxed from each other… it was a constant nightmare.
Have you tried Affinity Photo??? I LOVE it on my iPad and Mac mini.... I said goodbye PS a few years ago, when the garbage iOS version (I so agree) came out.... I was anticipating it, in the meantime I start working with Affinity Photo etc. I think it works fantastic - yes there were some work arounds (trying to figure out how to do something I did in PS) - google search is great for that !!!!Uh… the actual apps that those iOS apps are trying to emulate are certainly killers. I love Procreate, but it’s no match for Photoshop or Clip Studio. And LumaFusion is a Tonka toy compared to Davinci Resolve or Premiere, or AVID. Just try importing ProRes files into LumaFusion ?
How were you trying to share your illustrations? I do "share" and it asks me on my iPad what I want to import it to....