What do we know about Macron's idea for a two-tier Europe?

Press quote (Euronews)
11 May 2022

"One can say the Schengen Area and the eurozone are examples of a two-speed Europe, which is not the same as the other idea [of Macron], which is this outer circle of non-members of the EU, which would cooperate with the European Union on specific areas without being part of the bloc as members of the institutions," Camino Mortera-Martinez, head of the Brussels office at the Centre for European Reform told Euronews.

"And that's what I think Macron mentioned or was referring to, this idea of the European political community. And that's what applies to Ukraine, Georgia, Moldova, and perhaps to the UK, as well as other countries."