No one is winning, there's a lot of dead young men and distraught grieving families, everyone is losing badly.
Ukraine stopped Russia from taking over and more than a year later most of the country is currently still independent and not under Russian occupation and control. A lot of people might see that more as Ukraine winning than losing. Russia has tanked their economy and their international reputation (especially of their military prowess) and seems to be sending large numbers of men to their deaths for little apparent gain. A lot of people might see that as Russia more losing than winning.