A few months ago I looked up the drop rates of the crimson calyx. I couldn't find any information, so I decided to collect some data to calculate it. I share my findings on this video.
I hope you enjoy(ed)!
Honkai: Star Rail Statistics For Acro
There are 8,287 views in 15 videos for Honkai: Star Rail. About an hours worth of Honkai: Star Rail videos were uploaded to his channel, roughly 7.41% of the content that Acro has uploaded to YouTube.