1. Sanctions on financial sector and airlines are annoying at most and hit the most more liberal Russian middle class and elites, which has had enough in 2012 and would not dare to oppose Putin directly today (so, it's a reason to go to therapy or have a vacation in Asia rather than going to the streets). Russian financial authorities are one of the most competent in the world and it shows, the system is relatively stable and will go through the coming recession with minimal damage (not the first time).

2. Some manufacturing sectors of Russian economy do have problems, which do not hinder manufacturing capacity today but will have more long term effects. Chances are high that this will simply help China to become more competitive at the cost of Western producers of manufacturing equipment and electronics. They do not want confrontation with the West, but will use any opportunity to replace Western companies. Civilian aircraft production is going to be even more localized without the Western engines and may gradually catch up with the demand.

3. Sanctions on oil and gas trade simply do not work and are bigger pain for Europe than for Russia. You cannot cut off major supplier of hydrocarbons without full support of all the biggest consumers. It still goes on, just in other currencies (which may have negative long term impact on use of USD in international trade). Yes, Russian producers do suffer, but nothing really bad is going to happen to them.

4. Unofficial "Cancel culture" sanctions (Western brands pulling off Russia) have negative effect mostly on the Western businesses which may have lost one of their biggest customers, like some German companies. The assets are simply being taken over and they continue to contribute to Russian economy (and paying taxes) after some delay, switching to Chinese supply chain (e.g. car production). At best they will be paying double or triple price to return to the market later, at worst they will get more competition. It will be interesting though to see, how competition in digital services will evolve. For example, YouTube cannot be replaced by anything even when it does not sell ads or premium accounts in Russia.

To summarize, sanctions did not work. They did not and could not stop the war. The most damage Russia has inflicted on itself: excessive military spending increased inflation, from which civil servants and pensioners are going to suffer the most. Attempt to control it is going to result in major recession soon. Besides, massive emigration wave has put a lot of pressure on the job market and immigration from Central Asia can no longer mitigate it, because the attempt to recruit more soldiers from immigrants has scared many of them.

I still believe that the best strategy for the West should have been avoidance and deescalation, and then, when all opportunities were missed and the war started, US and UK should have deployed their military in Ukraine honoring the spirit of Budapest agreements. It was not wise for Ukrainian leadership to choose a side and push for NATO membership, but it was stupid for USA to leave the doors open, promise things that led to more escalation and then let the country slowly burn. This war is a major failure of Western diplomacy and lack of adequate strategy in Eastern Europe.