BA.4 and BA.5 have almost completely dominated all the Omicron variants now (see below).

Compared the rest of the world which is still going through a BA.2 variant wave (see below).

Here is the United Kingdom:

Here is the USA: The grey area in the bottom right corner is the rapidly growing BA.2.12.1

Here is Australia: The grey are in the bottom left corner is BA.2.10.1 which if 70% dominant in Western Australia