Oh yeah I was in your position a while back
Ultimately I went with the dell. Mostly because the LG T monitor had improper weight distribution and I had better experiences with dell.
If I had to guess, it’s probably the monitor motherboard+SOC. The LG’s a year older and doesn’t have as much in connectivity
Next thing might be response times
Finally will be
Overall, I think dell made a better work monitor (stand + connectivity) and LG made a better tv monitor
There’s some drafts/reviews