"Star Wars Jedi: Fallen Order" has been compared to the "Dark Souls" series in one respect: Combat. It's not a totally wrong comparison, in that each fight with each character is dangerous and requires tactical planning.
During the demo I watched, the player carefully observed enemies first before jumping in. Some stormtroopers have guns, which demand that you deflect blaster shots or get blasted, and some have electrified staffs, which demand samurai-like parries and perfectly-timed Force moves.
In one instance, Cal outright grabbed a whole stormtrooper using the Force and blasted them into a ravine (presumably to their gruesome death). In another, he deflected blows with his lightsaber before using the Force to push away the enemy and re-adjust the fight.
In general, the combat looked less intense than something like "Dark Souls" — more like a less hardcore version of "Sekiro: Shadows Die Twice."