I tried a 48" TFT-type television (attempting use as a computer display) and the refresh rate just wasn't there, along with typical backlight splotching (but it cost a fifth as much, so...).
My only caution is OLED can experience burn-in (unlike the smaller Aorus 45" using a VA-type panel), but it is otherwise a much better experience
I would rather have a quality large display with speakers and DP than a TV. The only argument in favour of buying a large TV for coding is cost.
The other limitation is lower brightness than miniLED monitors, around 30-60% of the nits in SDR. Whether that matters obviously depends on the ambient light or reflective surfaces near you.
For me, because I'm next to a big window and already squinting at my 400 nits IPS monitor, a < 300 nits OLED is a non-starter, but a 600 nits in SDR, IPS miniLED, is ideal.
This limitation should be temporary however because there are some high nit OLED TVs coming on the market in 2025 so bright OLED 27-43" monitors will likely follow.