I cannot install Samsung pay and many other apps like Netflix it says that my device isn't compatible can anyone help?

Its been a lkng time since i updated my s9+ its still running the december security patch 2018 i other samsung phones like s9 s8 s7 all of them got the updates of july security patch but i still dint got the update can you please help me with the sol...

why the bixby not responding???? does any one have any suggestions ??

my s9+ is over heating when it is not charging then also does any one have any solution for s9+ overheating廊廊廊