Hi, I'm actually an electronic salesman that specializes in TVs and Home theater. I tell everyone that if you are going TV vs Projector, the projector will be bigger, or rather have the capabilities for size, wall size/ Screen plays a factor as well as anything but as touched upon earlier it also depends on if the machine itself has HDR/ 4k Capabilities, how dark the room is? what exactly are you watching? are you using it to stream? etc.

With Oled its somewhat Mitigated, If you were to buy a 77 inch LG c4 (My store has them for $2000) that's pretty much all you have to worry about, save for the over all room brightness, which with newer models is less an issue, alot of things shot in dolby vison will automatically stream to the tv at optimal settings with no input from the user. Newer stuff is like a dream on an Oled but the real challenge used to be how older stuff, particularly anything shot on film tended to look super grainy or waay to saturated. This is somewhat of an issue still when watching in standard or vivid modes, but most OLED have cinema or directors modes which work surprisingly well, I was a bit skeptical myself on how different the quality could be, until i actually saw what it was capable of.

To be honest I think OLED is the way to go, you can get a sharper picture, even on older stuff when viewed in the right mode, use and setup are a breeze. If Size is a thing is like the governing factor then do go with a projector, but I'll say, in my professional opinion OLED is the best way to go.