Trying to learn about Judaism more I have been reading this StackExchange for the past few months. As a non-Jew using the correct terminology is a bit hard, so please do feel more than free to edit this question to improve it.
Regarding the rabbinic laws (The derabanan if I am not mistaken) there is often discussion and if my understanding is correct they can be 'overwritten' through time. Either way, regarding specific cases I have read about Jews not following some of these instructions (for example regarding what may and may not be done on the Shabbat) which made me wonder whether there are Jews which disregard Rabbinic law as a whole (a movement like the Sola Scriptura movement in Christianity for example), especially after reading a question like Why are we bound to rabbinic laws?.