And from the people I know, the Moscow parts of Die Linke have in fact largely left for BSW. Some are a bit too pacifist about Ukraine, but that's about it in terms of alignment with Moscow.
[Ed.: if anything, the SED successor flag should be given to BSW I'd say, but even that's off the mark.]
Edit: I last read some of that program in 2024, so not sure what’s their stance lately on this.
On the same page, they're also asking for the UN to be improved, specifically noting the security council. That's directly to the detriment of its permanent members, including… Russia.
P.S.: I profit monetarily from NATO, yet still think it's broken, but for reasons diametrically opposite to Die Linke: I think the US won't deliver as NATO member. It doesn't matter as long as US interests are the same as NATOs, but, … if Russia attacks the Baltics? I'm not gonna hold my breath for US NATO troops.