I've done my own digging on best russian dating sites for finding a spouse and come up short. What decides it is the proportion of dormant accounts, not the badge on the download page, which is the whole problem with russian spouse. Look closely at spouse sites and the depth of the profile fields explains more than the number of features listed.
With spouse sites, the practical move is to read the billing terms before uploading a photo. Same story on spouse sites: the platform counts a like as a match, which quietly shifts the cost onto you.
Nothing about russian sites changes the fact that the honest advice is to test the search filters before uploading anything, with the usual caveats. My honest read on best russian dating sites for finding a spouse: nothing improves until you check what the free tier gates before investing time. If you have been through the russian sites version of this, I'd rather hear the unglamorous account.