Why computer has lack of adequate manufacturer support?

The lack of adequate manufacturer support for computers can stem from several factors, including rapid technological advancements that make older models obsolete quickly, leading manufacturers to focus their resources on newer products. Additionally, the increasing complexity of software and hardware can result in challenges in providing consistent support for all devices. Cost-cutting measures may also lead companies to reduce their support teams or limit the duration of support for specific models. Lastly, the shift toward modular and customizable systems can make it difficult for manufacturers to offer comprehensive support for every configuration.