That only happened in the first few weeks/months following the invasion, and since then people returned to calling them "Ruskie". The general consensus is that the name refers to the historical area of Ruthenia
I no longer live there, but when I visit now, I often see the name "Kresowe" having replaced "Ruskie", Kresy being the name of a historical region around the Polish/Ukrainian border.
https://en.wikipedia.org/wiki/Ruthenia