In my opinion, the biggest problem is that energy prices can go up like crazy and if the technology doesn't keep up (both in efficiency and prices), maybe it gets too expensive to mine Bitcoin and small mining operations stop activity and then only major operations can keep their business. That can represent a bit more of centralization and that is not good.
But on the other hand, the network might eventually adjust difficulty and make it easier to mine blocks and eventually reduce the price of mining.
About the war and the effects on the network, it may have also 2 sides. Bitcoin can be as good as bad. States and governments like to have control over the population and in this sense, Bitcoin is bad. On the other hand, Bitcoin can help countries that are facing economic, political and financial restrictions to circumvent those same restrictions. So, as we say in my country, this is a double-sided knife blade in this scenario.
Energy prices are already skyrocketing for a large part of Europe but the miners will not stand idly by, they know how to move and consider that you can always use renewable sources to mine, indeed that is precisely the greatest incentive in continuing to mine .
that is very true, it is like they have more reasons to go into renewable energy and the rising energy prices will be their inspiration to continue on this mining activity without the help of these energy companies. this is why some large mining companies are investing in renewable sources, deploying solar panels in their mining farm or maybe wind turbine. these 2 are the most popular renewable sources to be used by miners. and remember, solar panels are getting cheaper these days.