HU810PW 4K UHD Laser Smart Home Theater CineBeam Projector

I have an 83" LG C3 OLED and a LG AU810 projected to a 120" screen. My answer? Both. I play most of my video games on the OLED, however if it's a very slow paced game or turn-based, I'll play it on the projector. But when it comes to watching movies, I always use the projector. The theater room is completely blacked/grayed out so the image looks outstanding. For anything lag sensitive I wouldn't recommend a projector, but but one of those 100" TV's might just be the best middle ground for you.

I just bought an Epson QB1000 to improve in black levels (over the LG HU810PW that I had for a couple of years), and so far I'm quite happy. I think you should read reviews from reputable places. This seems like too fundamental of a question otherwise because you're not giving criteria beyond black levels and "known brands".

I once tried the LG 4k projector(native), the one that comes with a handle and is a tall rectangular box like structure. I didn't see much of a difference between the Epson 5050Ube and the LG projector, when I compared a 4K disc. I am commenting this as a lay person, I did no do much tweaking.