The Switch 1 has both (LCD & OLED) variants, as the original one came out with an LCD screen by default while the OLED one came out in 2021 (and the ToTK special edition of that console released when the game came out). For me, I prefer the OLED panel since the colors look sharper & vibrant. Also, it makes no sense as to why the Switch 2 reverted back to an LCD screen when they literally could’ve made that OLED by default.
They made the Switch 2 LCD so that they can sell an OLED model in the future. It makes perfect sense form a business perspective.