Not sure if it was already answered but Lichess has no intentions of copying other websites.
Blitztactics.com has an improved version of puzzle rush, I highly recommend it
Whitedancingrockstar
Because Lichess has so many original features
Maybe you didn't understand me, but as Lichess is non-profit, there is no reason to waste time and resources on something that already exists on other numerous sites
What I don't like about blitztactics is that I can't analyse after the run. I sometimes don't find the solution and want to know what I was supposed to do...
@chris-tian maybe try to improve so you always find the solution, then you don't have this problem :-)
Actually, I mentioned to the owner of blitztactics the issue that you can't analyze the puzzle afterwards. He said he would be incorporating that feature sometime in the future.
@Simba7 dont be a prick to someone who jus wants to improve
I agree that puzzle rush should be added to Lichess!
