Sorry to bump, but I turned on my PS5 just not and saw that the game got another patch. Of course, the PS5 doesn't show patch notes, so I booted the game up to see if it was any different.
I turned the game on and got the usual few warning screens, then about 5 seconds of black, then it cut right to the main menu with the firehouse. No logos missing sounds/music... just no logos at all!
I loaded up a random part of the campaign; the load (going off an external HDD) was pretty damn long, but the game seems to run fine.