[Solved] Question regarding Physical and Hardware Isolation

for more privacy/ anonymity would you be better of building your own computer instead of buying a laptop lets say, straight out of bestbuy?

Thank you.

If you referring to the risk of backdoor-ed hardware and interdiction then probably yes building from parts would be lower risk.

But what your looking for is open source hardware to really reduce the risk.

Explained here;

This is an example of hardware that is almost fully opensource.

https://puri.sm/store/

Other examples

Ben NanoNote – handheld notebook computer based on a MIPS processor running Linux.
Chumby - “Ambient” information device.
CUBIT (multi-touch) System – Open-source multitouch surface-interaction system.
EOMA68 low-power modular computer.
Novena - Open-source Linux computer based on a 1.2 GHz (quad-core) ARM Cortex-A9 and Xilinx FPGA.
Open Compute Project – Openly share designs of data center products (server, storage, rack, …).
Parallax Propeller – a multi-core microcontroller with eight 32-bit RISC cores.
Parallella - an opensourced Single board computer featuring a Manycore coprocessor and an FPGA.[1]