The total combat losses of the enemy from 24.02.22 to 24.02.26

These official numbers are what is referred to when saying we are entering the 5th year.
Yes there were problems before that, that could also be labelled war, but there's a huge difference between before the 24.02.2022 and after. With a thousand casualties every day for 4 years.

I'm not saying you are wrong, but you are kind of changing the subject.
Donbas was not an existential problem for Ukraine, the full scale invasion is.