I gave up on Samsung getting BP approval. When I got the GW4 classic, I hacked it using this post on the xda forums. Been using it ever since.
Hello Everyone, I hope you all are fine... As SHM MOD is reaching its end, consider trying my health app, preregistration is open GeminiMan Wellness Companion... https://play.google.com/store/apps/details?id=com.geminiman.wellness.companion...
xdaforums.com
The developer has automated the install and update process next level. When I set up my 7 ultra, I restored it from a GW6 classic backup with the BP setup installed. Didn't have to do anything except calibrate the BP app with my BP cuff.
Go check it out. Buy the guy a coffee!