In the United States, the average season length for a scripted primetime drama or comedy show is typically around 22 episodes. However, there can be significant variation around this average, and some shows may have shorter or longer seasons.
Reality TV shows and other unscripted series can have a wide range of episode counts per season, and may not follow the same conventions as scripted shows. For example, some reality shows may have as many as 40 or more episodes in a single season, while others may have as few as 10 or 12.
It's also worth noting that some streaming platforms may release entire seasons of a show all at once, while others may release episodes on a weekly or bi-weekly basis.