12 MP, f/2.2, 112˚ ultrawide, AF
2 MP, f/2.4, depth
Reverse Wired 5W
No, Honor 90 does not offer any kind of IP rating and it is not waterproofed.
Honor announced 2 major Android updates. So it will receive Android 14, and last update will be Android 15.
Honor announced 4 years of security updates for Honor 90, so it will receive patches approximately until 2027.
Yes, Honor 90 offers WiFi 6.