Unfortautely, in my case, no.
As a test, I started the full scan and leave it there, with the Avast window open.
Normally, a full scan takes about 30 minutes to complete.
After waiting for 1 hour and 30 minutes, I came back to see the results and the percetange was still at 0%
But if you go to the scan history, there will be the scan results.