It certainly probably feels that way given the annual earnings of a russian compared to annual earnings of a USA family / household income. Daily expenses have always been significantly lower than the USA obviously, but earnings are also drastically lower so and increase in gasoline prices to even close to what the USA pays would be not great for the average person.
Anecdotally a friend just went back to visit her family and certainly QoL has taken a bit of a plunge. Obviously this is going to happen as war-time drags on, some initial boom I am sure but now its dragging. To say quality of life in general for both side has not gone in the shitter I think would be a lie.
For the average citizen in either country, I suspect no one is #WINNING
Unfortunately, that price was set well before the so-called "'fuel crisis". You could go on forever about purchasing power, the Big Mac index, and all that, but the truth is fuel prices were never reasonable to begin with. In Ukraine, prices in hryvnias are about the same number as in rubles- except the exchange rate is 1 to 2.5 or higher, meaning they're effectively twice what they are in the US. As I said before, Ukraine has no domestic oil production or refining, so it's completely reliant on imports. That makes it highly vulnerable- even to attacks by short-range drones on fuel trucks and gas stations.