🤣 only joined Unicode in 2016 (Unicode 9.0) — six years after 😂 — yet by Unicode's 2021 usage ranking it had climbed to third place worldwide, passing 👍 and 🙏 on the way.
😂 has drifted into a light "haha, noted" acknowledgement, while 🤣 still carries the sense of actually laughing out loud. Among English speakers the two now sit at different volumes, with 🤣 the louder one.
Emojion