Yeah, definitely depends on who I'm recommending to. If it's someone who's pretty familiar with games, I think it would be Elden Ring. Love the sense of exploration and discovery in that game.
I still find the odd person that never played it here and there, and yet everyone that tries it after says "Oh my god, how did I never play this game before?" and goes on to play the rest
Fallout: New Vegas. You don't need to have played any of the other ones. Obsidian did an amazing job missing some of the stumbling blocks Bethesda usually hits. Its a game you can tear through in a few hours, or spend years getting lost in.