Firewall rule for soho

I would like to creat a rule that prevents a vlan from talking to another and the vlan from talking to Lan.

I have intervlan box unchecked. Is this enough or is there more I can do.

I am starting to learn about firewalls for my soho. The was a good place to start. my serup is very basic, 1 roku a few phones and a couple laptops.

Any suggestions would be greatly appreciated.