Speaking of how Russians perceive those things. This is the numbers from WCIOM, which is a government-owned Russian sociological institution, so
the important thing here are not the absolute numbers (they are hardly trustworthy), but the main trends in perception of this war by different groups of people, which are represented with relative accuracy.
1. The red line is those who do not support the "military operation", the black line is those who had struggled to answer
2. The scale on the left is the % of respondents
3. The scale on the bottom is the age of respondents
You can see that the graph takes a drastic turn down at mid 30's/40's.
This is a more complicated graph, but I'll try to explain it.
The main question is: Do you watch TV daily? Those in the column "ДА" do, those in the column "НЕТ" don't.
The four bars in the left are different age gaps — from 18 to 30 on the left to 60+ on the right.
Red colour in those bars represents those who are against the war, the right one — those who support it, the grey one are those who don't have an opinion on the matter.
You can see that in each gap the "НЕТ" column has a lot more red in it, which is more than understandable — those who don't watch TV would be less influenced by Russian propaganda.
Again, the important thing are the trends of how those groups are splitting in comparison to each other — for example younger people support the war less for multiple reasons, and not the actual absolute numbers in %'s as those are going to be significantly altered by the government-owned sociological institution that conducted the study.