A couple of earlier posts commented on the differences between PDA, workplace cultures and kissing in public, or as part of greetings between friend and colleagues.
Now there are debates about how the corona virus will affect that>
Kissing in the time of coronavirus proves problematic for Europeans https://www.smh.com.au/world/europe/kissing-in-the-time-of-coronavirus-proves-problematic-for-europeans-20200302-p545uy.html
John