Are puzzles good to improve at chess?
Well I do all kinds of puzzles at lichess, also all topics under "practice", but so far I didn't get any better.
Which is ok. My whole life I always was bad at all kinds of puzzles, including those in video games. Or the good old adventure games of the 80s & early 90s, I always needed a walkthrough.
Playing chess and spotting tactics is somehow easier for me.