Trolls & bots fail to understand or accept that Russia is anything but infinite and inevitable - but numbers are numbers. They’ve spent half of their entire Soviet inheritance to steal what they sit on today. The war doesn’t end when they get to zero vehicles. The half they’ve squandered is surely the BETTER half, and they still need an army for territorial defense and internal repression. Ukraine is not about the break, and this is probably the best position Russia is ever going to be in. This is the endgame of this messy, abusive Divorce, and Pootz has to come up with some whopper lies to say it was all worthwhile.
According to Wikipedia the Soviet era tanks NK has is a few thousand T-55s and some T-62Ms. The T-62 varients are likely good enough to use on the battlefield, but the T-55s may not even be worth the fuel it takes to transport them. Remember Russia was fielding some T-55s not by using them as tanks, but by filling them with explosives and sending them uncrewed against Ukainian lines as bombs-with-tracks.
NK also has a bunch of 60 and 70s era Chinese tanks, but China may object to actual Chinese military hardware fighting in Ukraine.
source
Russia have lost hundreds of T-62s in this war already but barely any T-54/55s, so it seems that Russia agrees that fielding the older ones isn’t worthwhile. Or 55s are magically invincible, of course, but I know which version I think is more likely