A family member of mine in Germany is looking for a laptop in the 100-200€ price range. It would be okay to buy used and it shouldn’t be one of those modern Celeron laptops. It should still have a fairly slim design and a processor at least good enough to run Minecraft at low settings with ~30fps on Linux. Is this even a thing, and where would be the best place to start looking?
One of the requirements is at least not going to be it. Old secondhand ThinkPads are a good option. To my Knowledge Minecraft in Linux was kinda a hassle to get working properly. But a old w530 for example is a good laptop that might be what you want but they are not ultra slim about 2cm thick