Have we confirmed that ACH pushes from an outside bank into Fidelity, are not subject to extended hold times?

I thought I had read pushes into Fidelity are not subject to extended holds (10+ business days), only pulls from external accounts are. But Fidelity chat reps are telling me all ACH pushes or pulls are potentially subject to extended holds. Has anyone had a push INTO Fidelity be subject to extended holds?