Millennials, apparently. The generation has a huge population that is at the prime home buying age (nowadays). Being stuck at home with parents or in an apartment is not where a lot of people wanted to be during a pandemic. Combine that with low interest rates, and also investors that see property as a relatively safe asset.
The wait and see camp is probably most people, but those that aren't comfortable with their home situation and being stuck in it are likely itching to move.