These 2 photos show Kalanchoe luciae, not K. tetraphylla, which is a hairy plant whose leaves have serrated margins. This is likely a labeling error (tetraphylla has long been confused with luciae). More info here:

https://www.smgrowers.com/info...

I will propose that these 2 images be moved to the entry for K. luciae. If you have any questions or comments, just say the word.

Thank you. I am not an expert on succulents at all, I just go on the labels on the plants when I visit the gardens. Thank you and please do submit the proposal. I'm very sorry.

It's not your fault. This plant has been mislabeled for a long time. There's a similar issue with ornamental purslane plants. They are Portulaca umbraticola but if they are purchased with labels, the label usually says P. oleracea.