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... ~~~ WearOS WATCHES ONLY ~~~ ~~~ FEATURES, BUGS & FUTURE WORKS~~~ FEATURES: Works on Samsung Watch4, Watch5 and newer (as mentioned Samsung WearOS Watches), Multilanguage, no root detection, no country...
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!