I have tested ubuntu server images on Khadas VIM4 and Raspberry Pi 4B 2GB variant.
VIM4 Jammy - 22s Mantic - 21s Noble - 1m 30s
RPi 4B Mantic - 1m 50s Noble - 3m 55s
I don't have a amd64 system to test ubuntu on at the moment.
I have tested ubuntu server images on Khadas VIM4 and Raspberry Pi 4B 2GB variant.
VIM4
Jammy - 22s
Mantic - 21s
Noble - 1m 30s
RPi 4B
Mantic - 1m 50s
Noble - 3m 55s
I don't have a amd64 system to test ubuntu on at the moment.