Russia will try to find a way around these sanctions generally but it will be less efficient. It is not that easy to substitute everything. Russians may not care about latest brand items but domestic substitutions will not be always of good quality or functionality. It wasn't during Soviet Union and depending how long these sanctions last, it will gradually impact Russia.
Some think that sanctions will be gradually weakened. I think it will be the opposite. The war is just started and as Ukraine will suffer more and more casualties, countries will make sanctions even stronger. It is surprising that the reaction was so severe in this short time. Usually it requires longer time to agree on things and it is expected that more sanctions will follow.
I am very sorry for all my Russians friends who now will have to suffer. It is not an easy situation to deal and no way out.