I understand that it's non-trivial to support old devices but that's part of the process. If companies like Apple can support Macs going back 7 years with their latest OS release then I'm fairly sure that LG can manage it. It's not unreasonable for customers to expect that their purchased products get updates for a number of years and LG certainly have the funds to do so. The problem is a lack motivation on LG's part. LG announced a 14.24 billion USD profit in 3rd quarter 2020, they can certainly spare some budget to ensure customers are treated properly.