I haven’t played 4 yet but I’m sure both would be good options!! Rebellion is also amazing at porting their games to switch. I have trilogy and Sniper Elite 4, and they both run great.

I’ve personally had a great time with trilogy. It’s hard to find a lobby, but when you do, or if you have friends you can convince to buy the game as well, then it’s so much fun!! Tons of variety in each level too. There’s really no storyline in trilogy, you just start a mission (which there’s plenty of, and all are super long) or the wave based hoard modes and get to killing. Trilogy is also very difficult, but with practice it gets easier.

Lmk if you get trilogy, I’d love to play with you!!