Hi I'm affected as well.
I had hoped that the HWE kernel would somehow magically make things better but 
it doesn't.

System is a Lenovo T580 with Dual Band Wireless AC 8265

Attaching dmesg section where the wifi crashes

Interesting lines:
 529 [293336.199635] iwlwifi 0000:04:00.0: loaded firmware version 
36.e91976c0.0 op_mode iwlmvm
 530 [293336.199661] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless 
AC 8265, REV=0x230
 531 [293336.261557] iwlwifi 0000:04:00.0: base HW address: 18:1d:ea:2d:5e:2e   

 540 [293340.092557] iwlwifi 0000:04:00.0: Microcode SW error detected.
Restarting 0x2000000.

 649 [293340.832903] iwlwifi 0000:04:00.0: Firmware error during 
reconfiguration - reprobe!
 650 [293340.832931] iwlwifi 0000:04:00.0: iwlwifi transaction failed, dumping 

733 [293340.836537] WARNING: CPU: 1 PID: 22378 at 
drv_remove_interface+0xfe/0x110 [mac80211]

** Attachment added: "wifi-issues.log"

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  iwlwifi Microcode SW error detected.  Restarting 0x2000000.

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