Wouldn't you know, the link to the supposed OCSE report in reality opens a blog page from an uncredited source which does not contain itself any reference to the report you cited. Talk about sources and facts, eh?

Moreover, how many of the victims of this pre-war conflicts were caused by the little green men paid by the Kremlin? I guess you haven't asked yourself this question as it might clash with the alternative reality you live in to justify the russian invasion of Ukraine. Invasion that was not going to happen if we had listened to the russian who ammassed an invading force on Ukraine borders shortly before February 2022 but who then went on for weeks to reiterate that these troops and vehicles were there just for exercising and would habe never been used to invade Ukraine. There are some truth tellers among the russians, that's for sure