how to block all website except website that specified using flow based method in web filt

how to block all website except website that specified using flow based method in web filter?

I tried using flow based it's not working but in proxy its work.

I did disable all in fortiguard and specified the static url using wildcard and exempt them. and the last one block all.

I turn on ssl inspection and applied it in policy.

Almost forgot i disabled(Block) Quic in App control

But its not working. Any suggestion?