That's impressive.I probably over plant it if I'm being honest...
I have 3 4x6 beds.
1 will be peppers. Probably 28ish in that one.
1 will be the tomatoes. Gets crowded and probably over planted.
1 will be the rest of the peppers and usually a cucumber/zucchini plant
I always overcrowd hostas. I used to really plan it out when I put beds in but then I'd plant more in the holes because they're not fully grown or it was spring and they hadn't fully spread out. Now I pretty much throw them whereever I can find a spot and worry about moving them around later.