So Russian families who move to America have a choice - either deal with people and systems who assume that married couples, and parents/children all have the same last name and hit roadblocks when that expectation does not match reality, or change one partner's last name to match the other's.
But that second option has problems too, because that name change doesn't retroactively apply in Russia - so now you might have American documents that say you're a Elena Kuznetsov, but your Russian documents say that you're Elena Kuznetsova - so any legal dealings that involve the two countries (like, say, traveling) become significantly more complicated because you need to prove that the two names actually point to the same person.
At least middle names aren't a big issue - patronymics mean something in Russia, but here in America it's just a string you pop into the "middle name" field, and maybe you get asked what it means, and get to teach someone what patronymic means.
Speaking as someone whose mom didn't change their name when marrying my dad, with a sister who didn't change her name when marrying my brother in law, with a wife who also didn't change her name when she married me, I think this problem is overblown. I have yet to encounter any actual issues with this.
Sometimes people will assume we aren't married and/or divorced, and people will often call me by my wife's last name and vice versa, but it has never caused any actual problem. Never had any system that assumes we have the same last name. So many people live in blended families anyway, that very few systems/people make these assumptions any more.
I had a Greek friend born in America who was assigned her father's masculine gendered surname. Her birth was not registered in Greece. When she went to register in Greece as an adult, it created loads of issues due to her surname being incorrect from a Greek perspective. It required a lot of paperwork and fees be cause the Greek system was not set up at the time to handle that correctly.
On the flip side, her mother had a number of issues in the US having an almost identical yet different surname as her husband and daughter. Less extreme but frequently people would mess up the mom or the child's surname when entering records because they'd give the surnames a quick glance and incorrectly assume they were identical. She said there were often times where systems were designed with the faulty assumption that the child would have the same name as a parent.
Now, she effectively has two surnames depending on which passport she uses. Because it's easier for her to maintain names that correspond with the different systems.