Yes.

Yes. I do speedrunning mostly just for fun, and I do most of my Duolingo lessons normally.

Yes, I sometimes use (virtual) flash cards to help me remember the words in the languages I do. I do a few flash cards, and add a few words to the deck after I do a lesson.

I don't really get the question, do you mean like how do I memorize the words in a Duolingo lesson?

literally me

me when peertube exists

same here

can confirm this is false

does a wooden chair count

nah bro that's a good thing... is it?