Which (among many other things) can be faked with firejail, if you absolutely have to run Chromium (e.g. for testing): --machine-id Spoof id number

Which (among many other things) can be faked with firejail, if you absolutely have to run Chromium (e.g. for testing): --machine-id Spoof id number in /etc/machine-id file - a new random id is generated inside the sandbox. Example: $ firejail --machine-id