For low profile, I am referring to both switches and cases, since based on others' answers low profile switches and cases must be used together and no normal and low profile combination is available, i.e., cannot normal body + low profile switch or low profile body + normal switch (correct me if I am wrong).

I was considering low profile mechanical keyboard is because I think I have get used to its ergonomics (I am using Logitech MK235). Will I felt any discomfort swapping from MK235 to normal mechanical keyboards?

How about Logitech MK235? Is it low profile too?

I am using laptop keyboard recently, is that considered low profile keyboard?

Very appreciated for the replies! Any recommendations between low profile and normal mechanical keyboards? Which should I choose?

May I know the reason, please? Because I saw some claims saying that optical switches have longer lifespan due to less physical contacts, I wonder that's true or not.