There are a couple of things that could be done which would really help staff morale, particularly in the front line areas, such as acute hospitals.
Maybe provide night staff with some proper food/refreshments in the hospitals, subsidised or even free.
A well equipped gymnasium for staff, something like that.
In the long run, I think the " lockdown" provided quite a few people with a welcome sabbatical. A nice, relatively, stress free period of downtime.
Maybe all front line emergency responding public servants could be offered a three month paid sabbatical , for every 20 years worked. It would be a huge help to people who work in extremely stressful environments. I think it's hard for people to understand that working in Emergency Departments, or ICU, or Maternity Units, presents the staff with highly charged, sometimes battle zone type experiences, day after day. The staff train themselves to quash their natural responses, but, eventually it takes its toll.
Maybe a little thinking outside the box would be a better gesture, than a cheque for a couple of hundred quid, across the board.