Now, everyone will not receive an automatic update at one time. Of course, Also, make sure to have ample battery charge of 50% or more before installing the OTA.
If you see it's available, then to download it, use a Wi-Fi connection. This will now search for the latest J730FXXU8CUE8 software. Otherwise, go to device Settings > Software Updates > Download Updates Manually. So, if you have the patience you can wait for it to knock in automatically. This is an incremental rollout that will reach the users gradually all over the globe.
It brings the May 2021 security patch along with Performance improvements. This upgrade is making it's way over-the-air with build number J730FXXU8CUE8 and CSC is J730FOXJ8CUE8. Download Firmware J730FXXU8CUE8 : A new software update is now seeding for the latest Samsung Galaxy J7 for Country / Carrier Portugal (MEO) MEO And More other regions.