Is it normal i don't (usually) find stand-up comedy funny
I find it contrived and over-rehearsed, just hearing a person rattle off a series of pre-written gags and planned punchlines.
Stand-up has little impact on me, although sometimes I appreciate it as social commentary (George Carlin's shows were good for this).
To me, humour is only funny when it's quick and spontaneous, fast and clever responses and/or contextual in-jokes. Some stand-up comedians can do this on the spot with their audience, but I don't see many tbh.