No matter how this war ends, both countries will be incredibly affected by it.
No doubt.
However, for Russia it's a mistake that will cost them dearly but for Ukraine it's nothing short of a national disaster, comparable only to Holodomor in terms of population and economic losses.
Russia was facing a demographic collapse
... and still is. A country that wants to be a superpower but at the same time has population lower than Java Island, should definitely be less prodigal with its human resources.
To your detriment, yes. Those countries were smart enough to invest into alternative revenue systems
They might have money now, but when oil is no more then we will see what their "alternative revenue systems" are worth. I would still strongly suspect that in foreseeable future Russia will have more chances of development than Arab countries. Even today, it is Arabs, not Russians, who are hanging head-down from Polish border fences.
Besides, Slavic people are very resourceful, hard working and intelligent. For example, take a look at the latest issue of "Kwant" magazine for Russian schoolchildren...
kvant.mccme.ru/pdf/2023/2023-07.pdf
... you don't really have to know Russian - mathematics is a universal language. That's what Russian schoolchildren eat for breakfast :) Is there an Arab "al-Kwant" journal? :) Perhaps there is, but still I am confident that Russians - with more efficient government (perhaps we should try 1612 scenario, but in a more peaceful, mutually beneficial way?) can still use their immense potential and resources to become a power to be reckoned with.
Everyone enchanted with "Kwant" - take a look here...
kvant.mccme.ru/index.htm
... and feast :)
only one country that has consistently thretened it throughout the ages: Russia
History wasn't exactly your favourite subject at school, was it?