Unsure how to block specific applications on my childs WIndows 10 machine using Microsoft Family settings

I’m trying to prevent my child from running a VPN on his Windows 10 school computer – preferably during a specific time frame.

I was hoping to block specific .exe applications via the Microsoft Family settings. I’ve not been able to see/find the way to do this.

1. Can this be done?
2. How can I achieve this?

I understand that at any time the child can download another vpn software which has a different name/exe so it’s a trying game of cat and mouse.

I also understand that with "proper parenting" this wouldn’t be required but please lets leave "poor parenting" out of the conversation (there’s context missing here, which I don’t want to give details on).

As a struggling parent – any help would be really helpful and appreciated!