https://www.zdnet.com/article/how-to-remove-dells-superfish-2-0-root-certificate-permanently/

It’s actually called eDellRoot, not Superfish though.

You can safely assume that probably every manufacturer did or still does similar thing - whether they’re caught is another story though.

Dell did the same thing - in the same year too.

You should always clean install your OS. Let the guys wanting to spy on you put some effort in.