Not sure how to view EV90 rankings, but I have a feeling that Schreck's is similar to Roden's. Using just MaxEV, Roden reached 112 and 109.5 in AAA in 24/25, whereas Schreck's max comes in at 108.0. So raw power wise it's the same with potentially the latter being half a grade lower, but as you mentioned he gets to his power more often so his game power might play higher. K/BB they're a wash with RJ being more TTO focused and Roden having more of a contact approach overall.
Roden moved a bit faster up the minors, whereas Schreck is just now showing that success at AAA over a smaller sample. So if Roden ultimately was a back end top 100 50 FV guy, Schreck is likely in that 45-45+ tier of just outside the top 100 guys.
All that to say, he's definitely been a promising success story, looking like at least a decent platoon corner OF with decent defense and the ability to fill in at CF if necessary once every couple of weeks. Hopefully he's able to keep lifting the ball as he continues and ultimately makes the jump to the MLB.