I have a colleague who's been off sick with her mental health for several months. As employers they have really tried to support her, offered adjusted duties, adjusted hours, paid for counselling but she has been unable to work. Her paid sick pay allowance is just coming to an end.
She's a keyworker so the news today that she is now fit for work is excellent, except that a pre existing condition (not related to the absence) means she needs to self isolate for 12 weeks.
Maybe I'm a terrible cynic, but there can't be many people whose mental health has been improved by the current situation.