In general, edit parameters are not portable between imaging apps from different companies. Shadows + 50% in RAW Power is different from Shadows + 50% in LR. Even White Balance and Exposure use different algorithms.
And the RAW decodes are different, so even if exposure was the same algorithm, Apple and Adobe render the unadjusted RAWs differently so you are starting from different points.
Edits in RAW Power are stored in one of two places. If you use the Photo library, they are stored there and sync over iCloud Photos. If you are using the File browser, then there is no syncing solution; the files are stored in the app’s “sandbox” folder which is buried in your home directory.