It make sence to not map all soviet people to russians after Russia started invasion and killed 150.000 civilians in Mariupol only and people in Russia support that. Many of them have Ukrainian family names and nationalities. Also many people in Ukraine resist invasion with Russian family names and nationalities. If Bogolyubov was alive then he could decide what side to support. So calling him soviet is correct way to go.
What practical use case could be for that new material? Can we make a battery with it or something practical?
Indeed the original draft said USSR, but we are talking about Russian theories, not USSR scientists who are ethnically Ukrainian. We came to realize that we have so little information about the exact theory and our best knowledge suggests that the theory is, while may or may not have been pioneered by a Ukrainian scientist (see the updated post), currently rooted in Russia and not in the former USSR.
> Nikolay Bogolyubov was born on 21 August 1909 in Nizhny Novgorod, Russian Empire to Russian Orthodox Church priest and seminary teacher of theology, psychology and philosophy Nikolay Mikhaylovich Bogolyubov, and Olga Nikolayevna Bogolyubova, a teacher of music
It's not a "tendency", it's truth. All people you mention are Russians because they were living in USSR, speaking Russian language, worked in Russia and for them Ukraine was an administrative region.
Not to mention the fact that the country that denies Soviet legacy and achievement does not have moral right to attribute anything that has been done during the period to people and regime which despises their own past, legacy, sacrifices, relatives, and denies everything that has been done.
So ridiculous.
This happens to lots of famous scientists/engineers (Sergey Korolev, Vladimir Vernadsky, ...). We can do a bit better.