Stoic ethics is greatly underrated unfortunately. Despite being extremely influential from Christian ethics to modern cognitive behavioral therapy, it's relatively obscure. Everyone is familiar with it without knowing its source.

There is a picture of Epicurus or Marcus Aurelius with some pithy quote posted daily on many social media channels. The idea that "stoicism" is obscure is tenuous at best.

Pretty weak evidence for something not being obscure. I'm willing to bet that a survey would support my position that it's obscure. As for my weak evidence: personally I don't know anyone that is familiar with stoic ethics, and even in my university's philosophy department, it's basically only the one professor who specializes in Hellenic philosophy that obviously is familiar with it. Furthermore I have seen several CBT practicioners and none of them have heard of it.

I think this just exemplifies that Epicureanism and Stoicism share strong overlaps, despite their being pitted against one another.