She is the least objectionable political figure in German politics at the moment that has any chance of making an impact. No she is not a communist and yes she has a number of less than ideal and sometimes downright bizarre positions on some issues in ways which overlap with those of the anti-establishment right (e.g. on certain aspects of how Covid was handled, which btw we communists also think was severely mishandled but in a different way than the right does), but until a better alternative comes along or until the DKP starts gaining more mainstream appeal i personally would say that her positives outweigh her negatives. Among the "Die Linke" party, which is as far left as the mainstream political spectrum in Germany goes, people with actually good foreign policy takes are few and far between, and now that she has left to form her own party there are even fewer.

Another promising figure in Die Linke who is generally a bit more vocally anti-imperialist than the rest is Sevim Dagdelen, but lately i haven't seen much of her.