I bought my 65 "LG CX on 2nd May 2021 for £1797. I had been holding off on the prices hoping it would come down further. I got it from Peter Tyson and they matched the best offer I could find online.
Around now is the best time to buy a new TV, as the 2024 models will become the main models being sold without discount. I kept an eye on the price of my TV model after purchasing it and there wasn't any better discounts around for the next 4 months or so.
If you have the cash and ready to pull the trigger, I say go for it. £1900 for that model is a great price. I don't think you'll wait and get a much better deal.