There was never really a strong European identity, but Trump/Vance/Musk single-handedly managed to create a pan-European, anti-American movement with commercial implications, e.g., buyeuropean.io
Outside that Wikipedia entry, I have also heard nothing about it becoming required in Germany (we are mainly B2C, but do some B2B and B2G), here we are instead moving forward with X-Rechnung/ZUGFeRD/Factur-X, which is an XML standard that can also be embedded in PDFs, and doesn’t require certification or anything.
https://ec.europa.eu/digital-building-blocks/sites/display/D...
I don't know how complicated or easy it would be to just create templates which satisfy this.
In Germany it's already required for B2B transactions [0]
[0] https://www.bdo.global/en-gb/insights/tax/indirect-tax/germa...!