You can't upgrade everything in a laptop, but these three parts offer the most potential gain and are worth considering.
To enjoy Wi-Fi 7, you need a broadcaster (a router or access point) supporting the new wireless standard -- here's the growing list of options you can get today. And then you need a computer client.
Most laptops don't let you make modifications beyond the memory, storage, Wi-Fi card, and battery ... which removes any possibility of a DIY upgrade. There are ways to figure out if your laptop's RAM ...