“Sure” based upon what?
A Youtuber asserting such in a YouTube video?
You know, I listen to a lot of Youtubers, Rumble folks, etc. and virtually all of them back up their assertions or claims with proof or readily available and found proof.
I daily visit a lot of Russian social media sites to obtain information that WONT BE FOUND from the West/UK/US/EU/NATO propaganda media.
Not a one of the above have even remotely mentioned anything about Novoselivka .... not even TASS, RT, etc.
According to your sources are the Russians still in control of Novoselivka?