Let's not forget here that the Constitutional Tribunal was completely reformed and lost its original function by PiS between 2015 and 2016. The current government doesn't recognize its judicary function, because its not a democratic body anymore but filled with justices that were put there by PiS and cannot be legally replaced. The EU, back then, fined Poland already for violating the block's democratic values.
So, a ruling by these justices is mostly public posturing by PiS. The EU doesn't need to react if the government doesn't change laws to reflect this "ruling".
I think this is completely besides the point and wild whataboutism.
Varoufakis doesn't repeat Russian talking points in any way, although the interviewer has a clear bias. If Varoufakis was a Russian citizen, you can be certain that he would have argued against the war to the point of going to a Gulag.
Here is my take on his many interviews: He explains his view from his perspective as a European, which is completely valid. The problem is, that he always sees everything mostly in monetary terms. He doesn't concentrate on the value of peace that the EU brought or widespread human rights that were also propagated to other non-members because of conformity of businesses within the Union. Financially, many members could benefit from having there own monetary and trade policies, speaking purely about economic success. The benefit of going to the neighbour country for shopping and not thinking about tariffs, currency and such, is neglected.
Regarding Ukraine he says that we should have marched from the start if we really oppose Russias imperialism and not just deliver "a few " weapons here and there. But that the populace needs to be on board and that there is a nuclear threat is, again, not mentioned.
Altogether I think the man has very valid points, like the problem of big tech destroying the economic basis that the EU was founded on, and his insights about the 2008 financial crisis are invaluable, but he really focusses on money too much.