Yes I too have seen the 2022 Perun video where an Australian Youtuber gives a lesson on Russian linguisics, but I'm not certain he's right.

English also has more than one words for lies - lies, falsehoods, fibs, bs, prevarication.

Yeah sometimes we know stuff is a load of crap at work, but we gotta humour the process. Maybe it's 10x as bad in Russia. But I've seen little independent evidence those words Perun used mean completely different things, I think he's just accidently exhaggerating a possible bit of nuance.

My first language is Russian. I’m not young, so I remember a bit of the Soviet era and many of the paper books I read as a child. I perceive lozh and vranyo as nearly synonymous, depending on the context. The only difference I notice is that vranyo can occur without ill intent, while lozh is told deliberately to deceive.

I found the source of this new alternative interpretation https://theconversation.com/ukraine-war-vranyo-russian-for-w...

I call it BS.