I added the ? because I don't know if that's the right term. Here's the story.
A lot of folks here in Israel bought tickets on Ryanair to European destinations. When COVID emerged and shut-downs began, they tried unsuccessfully to get in contact with the airline for relief (refunds, vouchers . . . ). In recent days, Ryanair began operating flights to Israel. Since we have a 14-day mandatory quarantine for all arrivals and Israeli passport holders can't enter the EU countries, Israelis would not be permitted to board the outgoing flights and it's highly unlikely that any people are arriving on them. The assumption is that Ryanair is flying empty planes back and forth because if they cancel a flight they are required to give refunds.
Now I'm suspicious of some other flights I see listed. Easy Jet has flights to London-Luton, and Wizz has dozens of flights scheduled for the next week for a number of EU cities.