Monster Hunter Rise (Nintendo Switch) Expired

Piggybacking off of another reply; you'll hear a lot of "combat like dark souls", but that's not entirely accurate. The Souls type combat is fairly simple in nature, where you have maybe three or so moves in your arsenal (this x however many weapons you carry). The move list in MH games is more complex, where each of the 14 weapon types have fairly different play styles and ~10 or so moves that have different uses. The fun of this combat system is more about the mastery the weapon classes you choose to use, and learning the tells and patterns of each monster as you fight them head on.
To compare some basic points from the two in list form:

The fun of the Souls games is in learning the difficult levels,
bashing your head against a difficult boss until you barely eek out a victory,
and gradually leveling your character and advancing your build.

For MH:

The levels themselves don't pose a threat: they're essentially a small sandbox where you explore, gather items, and use as an arena to fight the monsters
you bash your head against the next hard monster until you eek out a victory... for the first time. And then you fight it a couple more times if you want to make new equipment from it. A big part of the joy is the process of getting so good at fighting it that you feel powerful "because you actually got good"
You don't actually "level up". All your stats are determined by your equipment, which makes the equipment farming more worth it, and simultaneously makes the player skill aspect more important.

Essentially, they're completely different games. You can try the demo first if you're curious, but even that isn't a very good representation of the game, since they just throw you into the deep end without letting you experience the process of building up your player skill and equipment.