What is a major drawback associated with laptops?

Heat buildup is indeed a significant concern with laptops. Due to their compact design, there is less space for ventilation compared to desktop computers. As laptops are used for extended periods or for resource-intensive tasks, the internal components, such as the CPU and GPU, can generate considerable heat. If not properly managed, this heat can lead to thermal throttling, where the performance of the laptop is reduced to prevent overheating, possibly affecting the overall user experience. Additionally, prolonged heat exposure may reduce the lifespan of the internal components or cause failures.

The other options, while they may present challenges, do not encompass the same level of impact as heat buildup. For example, limited memory capacity may affect the ability to run multiple applications simultaneously but does not inherently threaten the device's integrity. Excessive weight is less relevant in modern laptop design, as many manufacturers focus on creating lightweight models. Lastly, the lack of portability contradicts the fundamental purpose of laptops, which are designed for mobility. Therefore, heat buildup stands out as a major drawback in the laptop's design and functionality.