Comment # 4 on bug 1221734 from Lynn Winebarger

(In reply to Takashi Iwai from comment #1)
> You should be still able to use the old Leap 15.4 kernel on your Leap 15.5
> system.  Could you try to install the old Leap 15.4 kernel and identify
> which kernel version started showing the problem?  The Leap 15.4 (update)
> packages should be available at
>   http://download.opensuse.org/update/leap/15.4/sle/
> 
> And, if you figure out the working / non-working kernel versions, please
> give the dmesg outputs from both (with debugging options) to compare.

Ok, I have identified the versions.  I do not get a rtl8723 failure after
waking from suspend with kernel 5.14.21-150400-24.69, but do with
5.14.21-150400-24.74.  I left the rtl8723be parameters unspecified except for
debug_mask and debug_level (set to 5).  
Boot parameters from /var/log/boot.msg:

Command line: BOOT_IMAGE=/boot/vmlinuz-5.14.21-150400.24.74-default
root=/dev/mapper/system-root splash=silent pci=noaer preempt=full
mitigations=auto quiet security=apparmor intremap=no_x2apic_optout