I asked GM Minh Le (twitch.tv/gmminhle) to try it out, and he got a 2046 FIDE rating with 2306 lichess rating, after beating the bot. His actual FIDE rating is 2542 standard (https://ratings.fide.com/profile/12401153). His feedback was:
-Why does the bot get +20 seconds every move and you get +5 seconds?
-It seems like you have to wait a few seconds before making a move before the bot gets stuck
You can check out the VOD of him playing noctie on his channel if you want to see the full thing.
I think these tools, much like IQ tests, are not that useful when you are super good and get almost every move perfect. It was fairly accurate for me who is around 1900 lichess.
-Why does the bot get +20 seconds every move and you get +5 seconds?
-It seems like you have to wait a few seconds before making a move before the bot gets stuck
You can check out the VOD of him playing noctie on his channel if you want to see the full thing.