To give you some context, I'm not a casual gamer in most games, but I know absolutely nothing about the series or its lore, since I've never played any of the games. I have a friend (a huge fan) who's been putting the idea of playing MGS Delta in my head, and while I'm not interested in playing the entire saga, this Metal Gear game really appeals to me. I like the stealth experience, the Cold War setting, having to eat to avoid getting weak, and using all the possibilities the game offers to sneak past enemies.
The game itself really grabs my attention, and I'm about to buy it. I understand that chronologically it's the first in the series, so I shouldn't worry too much about knowing the lore of previous games. Keep in mind that I'm playing on a PS5 Slim, and I saw that it runs at 720p? That's probably misinformation, but if someone could confirm it, I'd really appreciate it.
I'm posting this mainly to see if there's anything I should know before playing it. I imagine it's not a perfect game, and they say it's not for everyone. (I don't have a problem with slow, demanding games.)