The desktop can be fitted with custom fans to better control the CPU temperature. Another advantage of the desktop is the ability to customize the hardware (CPU, GPU, RAM, HDD). On laptops, you can only upgrade the RAM and HDD. Because desktops do not have a battery, high wattage power supplies must be used in conjunction with UPS, and power supplies such as motherboards and HDDs can be sent back through the power supply.
You need to use a motherboard that matches the wattage of the power supply. Too much wattage can damage the motherboard. Laptops already use the wattage that matches the motherboard. The latest features are only available on laptops, so the laptop is here again. Security features like Fingerprint and Face recognition are only available on laptops.