I agree here. Ukraine will only get stronger over the next few weeks/Months as the new kit and training for that kit kick in.
If what they said last month is true they are currently training a million people and those million will be armed well with modern tech.
if Russia do succeed in taking over the country, they then have an incredibly large, well armed insurgency to deal with, even if only 500k of that 1m survived the invasion, if they all cut down into 10 man cells thats 50k guerrilla cells and is going to be devastating to any occupational force.