I'm no expert but from what I can tell, things that modify the verb (in the sense of specifying exactly what you're doing) go before it. So in situations like this when the verb isn't really isn't really acting on one specific thing, all the modifiers go at the beginning. For example, you would say ты всё знаешь to mean "you know everything" as opposed to ты знаешь всё because then "everything" would become something specific. Also, it would change the emphasis of the sentence/how natural it sounds and emphasize that "everything" is the thing that you know (the other person/people already know that there is somethig you know) instead of emphasizing the fact you know all things. You're welcome if this helped and sorry if it didn't lol; might need a native speaker to corroborate
"You understand everything well," sounds so Russian. Lol. (I love this course and I love Russian - you have to find the humour in all the practice)
— goes to duolingo to do daily Russian practice
— this comes up as the first sentence
I sincerely hope that continued practice will help me, even just a bit.
i would guess because the conjugated verb is 'to understand.' in the sentence you gave, the verb of sorts is 'to be good at' or essentially 'to do,' while specifying that you do it well.
Because it means "Ты хорош в понимании всего", but not "Ты хорошо всё понимаешь"
Yes, the course software isn't programmed to accept extra words ("very"). And often there's a way to add the meaning of the extra word in the other language, so too much leeway would be counterproductive.