The Luna-25 mission will seek to land near the south pole of the moon, collecting geological samples from the area, and sending back data for signs of water or its building blocks, which could raise the possibility of a future human colony on the moon.
It’s probably been in development for a decent number of years. By the time they invaded Ukraine, it may have been more difficult to cancel it if 99% of such a big mission was complete.
Plus, Russia (with China as a partner) is looking to assert its dominance in space once again. If their partners are willing to throw in $$$, Russia will prove they are worthy of such a task & capable of providing rockets that can achieve escape velocity.