The efforts we've undergone to make Oban (and Pro) work with CRDB have been ridiculous. Feature detection all over because of a lack of common operators and functions that can't be used in indexes. The worst is the rampant "serialization_failure" errors that force continual transaction retries. Not how I'd suggest scaling Postgres.
That said, as a predecessor to dbos in building durable workflows just using Postgres, I concur with the overall sentiment.
Can you expand on why you chose to use CRDB with Oban? I have no opinion here, I’m genuinely curious as someone using Oban myself (with Postgres). I haven’t hit the point of really needing to scale it out yet and I’d rather avoid the traps others have figured out.