I have a bunch of individual Spitfire libs that I got back in 2008 or earlier and EW Opus, no VSL or the like. I ran a decent size project using EW Hollywood Diamond with no discernable problems, but I'm not sure that qualified as streaming(?).
My MacPro 8tb samples drive is a new (this year) WD Blue. I do have a 1TB NVME PCI drive in the MacPro.