I have just been out for a week flying a Bizjet around Europe visiting Greece, Russia, Turkey, Sweden and France so I can now comment on the current situation from experience.  At each airport I visited the airlines were still parking their aircraft with only a few large aircraft operating.  The majority of aircraft movements came from the Business Aviation sector; with border controls relaxing the passengers are using the opportunity to use bizjets for business and pleasure.  Travelling by airlines is still not an option as it is very difficult to go direct at the moment and any travel has to involve at least two airlines via a hub to get you to where you want to go.  And with so few airlines operating the flights they do put on are full.  This means a passenger is more likely to catch COVID 19.  Bizjet travel keeps you safe and secure and certainly my passengers confirmed this fact.  Tomorrow the UK allows non essential travel to Europe and beyond and consequently the airports I operated to are expecting much more activity from the bizjet sector.  It continues to bounce back and will in all likelihood become stronger.