Why haven’t you heard of such a thing before?
However, to be honest, Qi Baishi's calligraphy cannot be compared with Kang Sheng's. Kang Sheng is the calligraphy master's calligraphy, while Qi is just the painter's calligraphy.
Having never seen Kang’s paintings, it’s hard to compare. All I know is that Qi’s paintings have been overly hyped by the special era.
Don’t take it seriously when chatting outside the door.
The following is a piece of writing by Kang Sheng. The content is:
Comrade Flounder:
When it comes to calligraphy, I can write better than Guo Moruo even with a wooden stick between my toes.
Kang Sheng
You can search for his calligraphy on Baidu Pictures to see for yourself, there are many types of calligraphy.
Kang Sheng’s paintings can be found online. It's really much better than Qi Baishi's.