I'm not sure if anyone else has been following the situation in Kalymnos - like the rest of Greece they did very well for a long time, but then they had quite a bad outbreak and consequently a longish lockdown. They were released from lockdown on Monday morning, but there were 32 new cases yesterday and 50 today. Therefore a new lockdown started today - 18:00 > 06:00 curfew, stay home, shops shut, no travel and no outsiders allowed on the island for a week initially, though that will probably be extended.
I have seen people asking about travelling there but it looks like now isn't the time.
Hope this info helps,
Chris