That’s in line with what I have seen so far on AX3 but it is not in accordance with the release notes for 7.8.
For Europe it should also have 5835,5845,5855,5865.
Today there was a Google Android update and now my Pixel 6a with stock OS can connect to my hap ax2 on 5885! I get 820Mbps down, about the same as using the hap ax3 on a DFS frequency. On the regular old 5875, which is kindof busy here, I get only ~450Mbps, so it is quite nice to have the extra space to use.