Assad is a Russian puppet, if they're saying he's there I tend to believe them only because from a propaganda standpoint it would make more sense to claim he was still in charge in Syria.
Falsely claiming he was in Russia would only serve to undermine their own interests in the region.
The Middle East is such a power vacuum that this shift in Syria only spells a more unsettled region. There will be extremists running most countries including Israel which only assures further conflict
I don't see how this specifically spells more unsettledness. There are already lots of extremists in power in the middle east. Syria has been in civil war for over 10 years and state forces have barely been holding on to the point where a sudden offensive was able to completely topple the regime in a week, it was already unstable and Assad had already failed as a stabilizing force, on top of being a butcher himself.
I'm not super optimistic about it, but the peoples of Syria do have an opportunity to build themselves more responsive governance and a better future, and I hope they will be able to make it work.