Whether that will turn out an issue for you will almost certainly be revealed by reading carefully the top left corner of the Download mode screen (or share it here). If you have been using the phone for a while and in the region that was the phone’s original intended market, Knox / RMM will have relaxed. Equally, FRP should it exist, will show on the Download mode screen. Perhaps check out the troubleshooting section of Know your hardware - Samsung.
It is good to think ahead to these possibilities! 
Good luck.