While Netflix is not opposed to canceling series, as it has done in the past with popular ones like Sense8 and The Get Down, the streaming service also has plenty of popular shows that have run for four, five, or even more seasons. Grace and Frankie remains Netflix's longest-running series to date, having concluded its run after seven successful seasons.
Source:https://www.cbr.com/netflix-greatest-long-running-series-ranked/