The people who are still doing this today, and yes it's still possible,
are usually on asia servers because they either live there, or have a good vpn.
Because asia servers aren't really populated, the old glory cheese method still works (just look up: ''trials of the nine cheese'' on google and you will find a document that explains the undertaking step by step).
The other possibility is that they simply use stadia, because nobody is playing there and crossave is a thing, you will most likely always match yourself should you apply the old glory cheese method