Typical actually means "of a particular type" but that particular type may not be difficult. What do you people think?
Typical does not mean difficult. If something — at task, say, like icing a cake — is usually easy, it would be typical for it to be easy. Difficult, however, would never mean easy.
Those qualities might be difficulty, easiness, awkwardness, oddness, friendliness, whatever: the point is, they would be representative of a type.
No, they don't mean the same thing.
People may however use "typical" to express dissatisfaction with something. For example:
"Typical Jim, he's always late"
"Typical, I knew I was going to fall into that cake, my day is ruined".
As others have mentioned, "typical" does not mean "difficult". There are no common English idioms where this is the case, either.
But I wonder if the people who "usually" use this word are not actually just mispronouncing "difficult". Or possibly you are mis-hearing "difficult" as "typical". There are some common consonant mutations involved d --> t, f --> p, possibly elision of the final "t". I once had Tibetan Buddhist monk as a teacher, and I can imagine him pronouncing "difficult" this way.