The last few cycles have been a weird time for NATO, as the escalating Russian aggression revitalised the alliance, but the unreliability of Trump vastly diminished the status of the US

Concur

Europe is now actively trying to get out of the military subordinate role.

Europe has been trying to get out of this role since WWII. I view that they were forced into this role post-WWII with American occupation. I also see that American power also led to European decolonization through the Atlantic Charter e.g. Vietnam and Asia, Africa, and controversially, India.

I view that America maintains Europe's subordinate role, both militarily and economically, through military influence, as discussed by prior NATO Commander Haig in 2002:

... Q -- Why is the United States still stationing 70,000 troops in Germany?

A -- A lot of good reasons for that. This presence is the basis for our influence in the European region and for the cooperation of allied nations whose security it enhances. A lot of people forget it is also the bona fide of our economic success. The presence of U.S. troops keeps European markets open to us. If those troops weren't there, those markets would probably be more difficult to access.

Q -- I didn't forget. I just didn't know that if the United States didn't maintain 70,000 troops in Germany, European markets might be closed to American goods and services.

A -- On occasion, even with our presence, we have confronted protectionism in a number of industries, such as automotive and aerospace. In addition to economic benefits derived from our presence in Europe, there is perhaps an even more important diplomatic and political benefit.

Q -- But the United States is not defending Europe against anything anymore. ...