I uninstalled Avast from my computer soon after Avast stopped receiving virus definitions updates on October 12th 2019. I can see that the issue hasn't been solved yet.
I will just keep using the other antivirus I installed on my computer. I don't care about the Avast streaming updates, and the lack of "official communication" from the Avast team is horrible!
I hope I can use Avast again when or if this issue is solved!