In stories, scenes are about advancing the character, world and plot. There's more than one way to get this done. One isn't necessary more "real" than the other. It depends on how one wants to tell the story they are telling.
My point is Discovery has a tendency to focus too heavily on the plot at the expense of character. It's improved markedly this season, and is getting better still as the season draws to a close, but still in many cases the character development only comes as part of the plot of the week (Saru's two focus episodes, Burnham's interactions with Spock, etc).
I actually don't think they succeeded in making it "GoT", but IMO it's obvious they at least tried a little bit. Though even then I still think the larger influence comes from nuBattlestar Galactica (which is IMO undersold as an influence on "GoT", much like "Rome", people like to pretend GoT arrived without precursers).
The first season of Game of Thrones was (minus the gratuitous sex) a straight-up, almost 100% faithful adaptation of the first book (which came out in 1996). Things like NuBSG and Rome may have influenced why they chose to adapt the book, and certainly influenced things like the direction and visual choices. But the actual plot had nothing to do with anything else on TV at the time. It all comes from the book, which is basically a deconstruction of the tropes of high fantasy. Basically the first book/season is to a large extent a tragedy focusing on Ned Stark, showing how being "good and honorable" is not sufficient when you're dealing with medieval court politics.
The "anyone could die" thing came from the books too. GRRM loved doing this in part to tweak fans. But writing a book is fundamentally different from a TV show, because the characters have fixed arcs, after which they're gone. When shows are writing without the net of a book source, in contrast, there's a big pressure to keep breakout characters around when it makes no story sense. Note how in the last two years of GoT - when they ran out of book material - they basically stopped killing off the main characters.
That being said - it's actually quite interesting how "small scale" the first season of GoT actually is. Yes, they had more fractions (which they tried with the Klingons on DIS), but GoT also started out with only two major storylines (Boromir Stark and a bit of the rest of his family), and then simply spread out more over time. The biggest difference is IMO GoT put more emphasize on it's background characters right from the start - but it still also had a very obvious "lead" character in it's first season.
A lot of that was due to the source book itself. Some of it was also because the show dealt with significant budgetary limitations in the first season it didn't have in the later seasons. So, for example, the battle in Baelor almost entirely off camera while Tyrion is unconscious.
Still, there were basically six different plot lines in the first season:
1. The journey down to, and stay in, King's Landing by Ned, Arya, and Sansa
2. Bran at Winterfell
3. Jon at The Wall
4. Daenerys in Essos
5. Tyrion's adventures
6. Robb marching off to war
That's rather a lot for ten episodes, but they pull it off.