I have just installed linux-firmware_20230323.gitbcdcfbcf-0ubuntu1.8_all on 23.04 and it has fixed the display freezing at boot problem for me with a Navi 31 [Radeon RX 7900 XT/7900 XTX].
I have just installed linux-firmware_ 20230323. gitbcdcfbcf- 0ubuntu1. 8_all on 23.04 and it has fixed the display freezing at boot problem for me with a Navi 31 [Radeon RX 7900 XT/7900 XTX].