Furthermore, I think there was a pattern between the frequency of UAF aerial incursions and the amount of artillery the NAF brings to bear. As the threat of UAF airforce diminished, the amount of artillery deployed by the NAF increased.
It's pretty clear that the NAF would not be able to access this amount of artillery solely from captured UAF equipment, so they must be supplied from Russia. Moving artillery is no easy task with NATO satellite surveillance, so this must have take quite some time, not to mention you also need qualified personnel to operate the artillery.
The current NAF offensive is in marked contrast with their defensive operations last year, when they had a severe lack of armor and heavy weapons, and were really struggling to fill the breaches, so to speak. Their current offensive is methodical and well-coordinated, which means they must have been preparing for this for a long time.
Therefore, the current offensive must have had full Russian blessing, which means the recent "peace talks" were a complete smoke screen. While in hindsight, that is not a particularly extraordinary insight, it does put to rest the question of whether Putin and the NAF are on the same page.