Has the value of office space been adversely affected during COVID?

Does anyone know if the value of office space and office buildings have been negatively affected since COVID started?

I think a lot of people were assuming that they would be, but I haven’t seen any actual data to support whether or not this is the case.

I have to imagine the values have been hurt based on a pro forma basis. If big commercial tenants are moving out and lease revenue is dropping, I’m not sure how that would do anything other than sink the revenue stream and value of the building itself.

At the same time, I know people are paying stupid prices for every type of real estate right now, so maybe not?

Does anyone know what the status is for office buildings these days, either nationwide or in a specific market?