It is unfortunate that so many people seem content to imagine that a tiny number of ground vehicles, with limited munitions and zero air support, is going to be akin to Harry Potter's wand and magically blast Russian forces into oblivion.
The reality is that Ukraine is woefully under-equipped, ammunition reserves are far too low, and as Ukrainian air defenses will be exhausted by mid-May at the very latest, Russia will have air dominance. This means that the few vehicles the West has belatedly supplied (they should have been sent 9 months ago) will merely be slow-moving targets for Russia's jets.
Putin is most likely not at all perturbed by the planned Ukrainian offensive, for two main reasons. One, he lives in an information bubble. Two, he knows he can continue to throw bodies into the fray long after the fickle West has walked away and left Ukraine on its own. European NATO stockpiles, inadequate to begin with, are now depleted. The USA is turning away from Ukraine as the neo-fascist Republican Party chokes off aid. This puts Ukraine in a very difficult position. Time is not on its side, and we've provided insufficient materiel to enable it to make truly significant gains in any planned offensive later this year.
Delusional babbling about a handful of tanks is merely a sign of complacency, not accurate predicting of the future.