I am not sure what the differences are between the three different products. I do have Avast One with 5 units and would like to have for 10 units
First, I’m an Avast user and not an Avast Team member.
I use Avast Antivirus Free +9and have been for 21 years) it suits my needs. Whatever the choice you make it should meet your needs not the other way around.
You might want to check out this search
Avast+One+Vs+Avast+Premium
You should note that the Avast One product range has a different user interface to the Avast Premium User Interface.
There may also be less configurability in Avast One Vs Avast Premium range.
If you are talking about Avast One Free then they will be limited.
The first hit in that search is for Compare Antivirus | Choose the Right Protection | Avast