But keep in mind you have to disable all subscriptions first and also your family group if you have one must also switch their accounts to US.
So yeah pretending you're US customer is no brainer with Apple and unlike Google they dont have automatic detection that will move your account to other region.
Beware you can only change account region once a year or something.
After spending 8-12 years in a single gmail account I learned my lesson. Don't get entrenched or you can't be flexible.
I thought they at least used something complex to attempt to prevent non-EU users using third-party app stores. I also recall a legitimate EU user is not allowed to travel abroad too long before losing access to those stores.
What Google does is completely different - they enforce local regulations on your accounts just if you keep using them within specific region for too long. Though Google dont actually change billing region or Google Play region.