You are most likely right. But naturally I prefer clean solutions than tinkering with lower-level orchestration stuff. So I will give Prefect Orion another shot I switched back to Prefect 1.2, because of my issues here:
However, Prefect 2 is indeed easier to set up and use (not least because of SQLite as the default), so I will rewrite my flows to accomodate the issues I mentioned in the topic above.