Geometry adjusted, emulators optimized for 240p. This consumer 14" CRT doesn’t show great scanlines but if you play very near is good.
This Blueretro adapter works very good on GameCube slots for bluetooth controllers like my 8Bitdo Pro2.
I learned PSX emulation isn’t very good on Wii so not the definitive 240p retroconsole but it covers a lot for very cheap.
You can have good pixelart on flat screens using shaders but yeah, CRTs are great.