I would suggest looking at oTranscribe
I use this to take notes from videos and would love if this was native to Logseq
Basically, I mean keyboard shortcuts to play/pause/skip backwards/skip forwards/go to time.(in oTranscribe, this is F1/F2/F3/etc)
Also, on Firefox there is an option to “pop out” a youtube video so that it floats around and I can resize it, move to another screen etc., but it’s still “attached” to the page so the keyboard shortcuts still work. This is very handy.
I would definitley like to be able to resize the video in Logseq, often slide decks are too small to read.