There is one thing that is really irking me with all the Pi5 cases that i've found so far including the official pi case.
none of them have anywhere to neatly and securly to hold the RTC battery. either it flops outside of the case (if the case has a hole for the wires) or it just rattles around inside possibly hitting the fan or gpio pins.
@ukscone I struggled with that as well. Same setup as you described; same problem with the RTC battery.