Bingeing, Weekly, or Batches? Is There a Right Way to Roll Out a Series on Streaming?

I just recently watched seasons 3 and 4 of stranger things because I had only seen the first two when they first came out. I thought 5 was gonna be right around the corner, and I found out it still doesn't have a release date and season 4 actually came out almost 4 years ago... Like what the hell is going on? I get scheduling can make filming a pain in the ass, but the only one of the cast who's been doing anything the last few years is David Harbour. Not even Finn Wolfhard, who was in every other teen movie from like 2016-2019.