ok. thanks for answer. Of course I have PS4 Slim in version 5.05, however, I think I will buy a second console with older firmware as a backup for all cases.
Maybe someone will sell the 1,76 version of the console in good condition
I feel that version 1.76 can run the game backups from 5.55 and maybe even from the future 6.0, but otherwise you are right
Thank you for your advice, you see that you have an overview
I will stay on the patch 5.05 and I will buy Playstation 5 for online gaming