You don’t really need a fast laptop for this, anything that goes over 10000 points on the Passmark CPU test, is enough (and with an integrated Intel cpu, if you want the best support for video codecs).
In Europe, the cheapest way is to get a DELL that comes with Linux. They’re 99.9% compatible, with firmware updates supported via fwupd on linux, the only thing is hit or miss is palm rejection on the touchpad. Everything else works. In Greece these start at 600 euros with 16 GB of RAM, 750 euros for 32 GB of RAM. I bought one myself recently, with an intel cpu at 15k points on passmark. Plenty fast. Only thing that doesn’t work accelerated is Blender (it works in cpu mode only), as it requires non-integrated GPUs. Resolve works now with intel gpus on linux too, and so is kdenlive.



Which model canon exactly? I personally use an epson and it works out of the box.