The 1GB RPI4 can definitely not be used as a main desktop. I make my son use a Raspberry Pi 5 with 4GB of RAM to code simple stuff for school, and it's barely usable because the UI is extremely laggy.
You are the one making up a situation here.
You are the one making up a situation here.
I'll quote it for you:
> A Pi 4 is my son's primary computer
So, no, I am not making up a situation.