It seems legit that she was arrested based on the Russian articles about that have been posted in this thread, but I don't speak Russian so idk what it says she actually got arrested for.

Either way, unless RFE is completely distorting the reason why she got arrested and it's actually a terrible crime she committed, it seems that its another case of far right post-soviet neoliberalism doing police crack downs

I don't know if they'd go through the effort of staging the photo

https://vkrizis.ru/obschestvo/olga-smirnova-prigovorena-k-shesti-godam-za-sem-postov/ https://www.kommersant.ru/doc/6186252

I don't read russian but I think this is legit? I just copied and pasted her Cyrillic name in Duck Duck Go, so these might still be western propaganda targeted towards Russians like I said I don't speak or read Russian or know major outlets in Russia.