I've done that and it depicts that my software is up to date, but it isn't. it has 1 August, 2019 security patch on android 9. I also have more than 100 GB space. I really need the android 10, What else can I do?
I don't know if it works on a MacBook so hopefully you have a pc, if so download and run Samsung Smart Switch where it will give you the option to update it Via the computer just make sure you keep your phone plugged in during the update.