Safe to update Conbee gateway while devices are updating firmware?

I am updating the firmware of a bunch of my Zigbee devices to solve some specific issues. I also need to update the firmware of my Conbee II Zigbee gateway. Is it safe to shut down Home Assistant and perform the update of the Conbee gateway (on a Windows PC) while some Zigbee devices are still updating their firmware? Or do they need to stay in communication with the Home Assistant server while they are updating?

I would suspect that they actually need to talk to the gateway itself and that would immediately stop OTA delivery…

Do yourself a favor and be patient and wait for the OTAs to finish or cancel the before you do the other.

Thanks for the advice. Yes, patience is so often the right policy!