Sometimes what you want to say doesn't really warrant a whole reply, but there's no way to say it other than making what's called in the forum operators world a "low effort post", so now we have an even lower effort option for you with 3 new reactions!
Say "Thanks" with the 🙏 reaction, "Fair point" with the 🤝 reaction and also the "Hmm" reaction which is a good way to say you disagree without having to go into a whole monologue with someone for the umpteenth time. It's fine to disagree.