I was able to do some research and indeed the HX processors are mobile processors for notebooks. Unfortunately, there are no CPUs with this socket available on the open market, so you would not have any upgrade options to choose from at the moment. In addition, the CPU is soldered to the mainboard, so it is not easy for the user to replace it. If an upgrade option is a topic, I would therefore choose a setup with replaceable desktop components such as the following examples:
Captiva R89-724, AMD Ryzen 7 9800X3D, 64 GB, 2000 GB, GeForce RTX 5070 TiCaptiva Highend Gaming I89-020 Core i9 RTX 5080, Intel Core i9-14900KF, 64 GB, 2000 GB, GeForce RTX 5080