The Huawei Mate 20 Pro is one of 21 devices certified for the latest beta for Android Q. The OEM has now made places on a program to test it available to users of the 2018 flagship. It appears that this program is best suited to developers or those used to testing potentially unstable ROMs.
https://www.notebookcheck.net/The-Mate-20-Pro-gets-Huawei-s-Android-Q-Beta-treatment.420511.0.html
This "news" has been regurgitated dozens of times the past week on countless sites.
this currently only applies to CHINESE models.
International versions are still waiting