34 inch ultrawide 21:9 vs 42 inch 16:9?

Considering between Alienware AW3425DW and LG oled c5 42 inch. Both will cost me nearly the same, LG maybe slightly more expensive.

LG c5 oled has more vertical screen space but isnt curved (might be less immersive?) and will have a lower pixel density (70ppi) when playing at 2k vs smaller alienware at native 2k giving 110ppi, which is even more than lg running at 4k giving around 105ppi

I understand that the Alienware might have less vertical real estate for cockpit instruments, but i will then place dedicated, smaller, lower res screens below the alienware monitor for those (like the ones made by waveshare, and also make use of my current fhd monitor), so i can have them visible even when in external view.

Use case: productivity tasks, flight sim, ps5.

Any inputs welcome, thanks!