Under normal circumstance, no it isn't asking for medical advice . Asking what types of bike I can ride after a major surgery is medical advice. Who knows if a certain bike / configuration is going to do more damage or not? No one can answer that except a trained sports therapist or doctor.

This is the same as the question of how many miles should I ride when I am starting out and I am not physically active. Any advice on that is irresponsible without the person first getting clearance from a doctor.