I decided I would never buy an LG monitor after mine broke and I had it shipped back three times for diag and repair. Each time it broke again soon after. They finally agreed to RMA it, but that didn’t mean a new replacement, it meant a refund, and not even for the whole price I had paid. Unfortunately the price had gone up a few hundred dollars since then, so I couldn’t even buy a replacement. This basically means they sold me a junk monitor I had to deal with for a year and then tried to get me to give them an extra $300 to roll the dice that the next one would work properly. I bought a BENQ instead, and it’s been solid.
That sucks. I've used an LG UltraFine 5K with my Mac Studio for years and still consider it one of my favorite tech purchases ever, so I feel lucky I've never needed their support services.