This. There’s a reason why “novelty domains” like .movies and so forth exist, let alone .org, .com and .net. National domain extensions are meant purely for things within that country. Reason being that domains are namespaces, which starts with subdomins, domain and then extension. It’s purposefully designed like that. It’s sort of more common to use namespaces in the reverse, like on Android an app might have the namespace:

com.google.Android.someUtil

Likewise, a flathub package might have the namespace:

org.dannyWhale.Vivaldi

Domain names are meant to let you specify the destination first by reversing it:

vivaldi.dannywhale.org

It’s meant to contextualise your destination, and the source from which you stand.

Country codes are important paths to have, allowing similar domains in different countries and a directory for local businesses, government bodies and organizations. It’s categorical and should remain as such.

Do not go off spec.