Human Rights Watch has recently published the total death toll (including civilians rebels and ukrainian soldiers) which is around 6400 (lets say its 7-8000 today)
no way in hell quarter of those could be russian soldiers
Ukraine Conflict Death Toll Surpasses 6,400 Amid New Evidence Of Russian Military Involvement
if I had to tell a rough estimate it would be anywhere from 20-200 but 2000 just no way