When will Avast Premium Security users will be able to transfer to Avast One?
-> https://support.avast.com/en-ww/article/Migrate-One-FAQ
Reading about the features again there.
I see that a big list of features is not included in Avast One, which are included in Avast Premium Security.
And I see among unique features of Avast One only VPN, Data Breach Monitoring, and PC Speedup.
It's a known fact that almost any tools advertised as speeding up PCs are either a hoax or things that can potentially do harm, like those registry auto-clean up, etc.
And there's a big question how much speed they actually give.
It's a very broad and vague thing to have as a feature: PC Speedup.
So, basically Avast One is useful only if someone wants to use VPN and Data Breach Monitoring (whatever that is).
But they will lose a bunch of quite useful features from Avast Premium Security they could have otherwise.
Most people probably would be happy with Avast Premium Security more than Avast One.
I'm saying all this, because the name "Avast One" created an implication that it would cover everything possible in one product,
but (at least as of now) it has less to offer than existing products, with a couple of unique things like VPN.
Maybe, calling it "Avast One" wasn't such a great idea?