At this time 07.08.2024, we like Shopify partner and experts have not been informed by Shopify that this feature is in development.
We know you need a solution we also search for solutions but the answer is contain in our previous answer!
What you can do:
About your case, because we see you are also a partner - if this is a client project at this moment this is not the best but still the only one to overcome this technical limitation is to create 1 more main store based in a European Union country - your client will need to register a company in country that support Shopify Payments: https://help.shopify.com/en/manual/payments/shopify-payments/supported-countries.
Pick up a country with small corporate tax: https://help.shopify.com/en/manual/taxes/eu/eu-tax-reference;
Configure multicurrency for diffrent markets: https://help.shopify.com/en/manual/markets/manage-local-currencies;
Register a company by OSS for TAX Compliance https://help.shopify.com/en/manual/taxes/eu - like that you can collect VAT from one jurisdiction, if you have warehouse in different country will be diffrent scenarios.
Second Automate your inventory 2 way sync between this 2 stores and any warehouse.
Operationally, the work will become double which is a huge effort, but from your question and case - we understund you want to scale your business for alot of EU country - so that will sefe you alot of job at this stage.
If this feature is critical for you to expand your business at the moment, this is one way to use POS in EU Country - one main store in dollars in USA and one main in euro in European union.