International travel is extremely difficult at the moment.
If you need to travel then the best option at present is to buy a ticket imho.
It wouldn't surprise me if a lot of companies have suspended Zed or other forms of Staff Travel. I have personally been refused twice at check-in, travelling in uniform on a confirmed ticket with letter from my Airline stating I was involved in humanitarian flights.
I'm currently on day 10 of a 14 day Quarantine. I'm not allowed out of the apartment where I am staying.
With the 14 day Quarantine currently in place in a lot of countries travel is a one-way option.