If you don't see GSF (on some devices with latest EMUI 11 it's unfortunately common) simply skip this step. In your case step 1a is crucial.
My problem is that I don't even see the "Show System process" in "App launch", only in Apps, so I can do the clear data of GSF but can't configure GSF as in 1b.
Is that normal? Reinstalling gsf won't help in my case.
Mine it's a P4 Lite 10.0.1.136 working ok after Googlifier. I won't update Android anytime soon as GSM is working (I use a lot Android Auto and Google Home). I just need to make notifications work...
Can I do the process without 1b?