My other comment was blunt so here’s my attempt to be more constructive, this is all my personal opinion and my reaction was in response to making it the default I don’t think that you should stop working on it or even that I am objectively correct.
There is way too much empty space. I don’t use it but from OPs screenshot it appears this is to allow for larger thumbnails. It would be better to have them smaller and expandable if someone finds one interesting. Moving the thumbnails to the left of the text would eliminate all the blank space your eyes have to travel across to view them as well.
Shitty microsoft paint edits to demonstrate what I’m trying to say:
Freed up space in green:
Just played around with it a little and it is much more tolerable than OP makes it look like. I wasn’t able to get it as compact as the default view but I don’t hate it.