It's very much a leader-centered party. Their leader, Zoe Konstantopoulou, used to be a quite prominent member of Syriza (actually her father was for a time the leader of "Synaspismos" a left party from the 90ies whose members were mostly communists who split with KKE and later became Syriza) but she left the party after the 2015 capitulation. Around 2012-2015 she was known for pushing for reparations from Germany for the Nazi occupation, at the time what some people thought was a useful argument for forgiving the greek debt or turning around the discussion from "we owe money to Germany" to "they owe us too". During the first Syriza government she was named as the speaker of the greek parliament. She is known for being a firebrand, always speaking in parliament over the allotted time, and getting into arguments very often. She is also a lawyer who has been involved in some interesting/public cases: In the past, she was representing a journalist who started a motion against Henry Kissinger for his involvement in the military dictatorship in greece as well as part of a motion in the ICC against British officials for crimes committed during the Iraq war. She defended the family of Alexis Grigoropoulos (the 15 year old boy who was shot by a police officer in cold blood in 2008 which led to some of the biggest riots in modern greek history). Her recent surge in popularity has to do with the fact that she is currently defending pro-bono the families of the youth that died in the Tempi train crash in 2023 (I wrote a post a few weeks back about the greek protests related to this), and has been the most vocal critic of the government for the handling of that case.
I think that her politics are incoherent, and I agree that the "we are not left or right" will have to face reality if she ever gets close to power. It's unclear whether her popularity will keep going up or it will burst. Greek politics right now are too chaotic to tell.
But we will never stop hearing from western liberals about the betrayal of Ukraine by Trump and how Russia would have lost had it not been for Trump.