I transferred all my data using SmartSwtich from a locally attached SD data card.
One thing I should have done was check for app updates in 3 places: Play Store, Samsung Store and Play Store in Secure Folder as I ran into a few oddities getting logged back into things. There were 44 app updates on the Play store and a lesser number in the other two.
I had a lot of issues with GPS inaccuracy with my cycling/hiking app (Cyclemeter) with the last Galaxy phone. Hoping that won't be an issue with the 25 Ultra.
Calibrated Google maps
Open app and move phone in figure-8 pattern
In Settings
Location permission
Verified Cyclemeter was set to allow only when using the app
Toggled use precise location
Battery settings:
Selected Unrestricted under Battery radio button
Toggled on Application data usage: Allow data usage while Data saver is on
