Im thankful for any kind of answer!

I hate autos I got 13g a plant but it is really dependent on environment and you have to make sure that you stunt them happy growing

For the record I have autos out preform photoperiod plants every day of the week. With autos you can have a perpetual grow room and constantly be planting, and harvesting. Is what I do to address Steve's comment on photoperiods. As I said before it depends on substrate and environment.

it's more difficult to consistently fil your space when there is greater volatility in size and outcome of the plant, which is true of autoflowers. if you want to maximize your area, and tailor growth to need, buy photoperiods. if you want to be left to teh whims of a plant, buy autoflowers. plant more than needed so you can cull the runts and ensure you still fill your space. best way to maximize such things. if you fil it right, it's no different than a photoperiod harvest filling the same space. photos can finish just as fast if you have a short vege.

There’s guys pulling over ten ounces from autos, I’ve just started autos and got 18 growing right now in soil. 9 are flowering, 9 are two weeks into veg, I won’t be pulling ten off a plant but there’s guys out there exceeded 10. I’ve got one at almost 5ft she was stuck in veg for few weeks past her siblings and so long as she survives til harvest she will be heavy for sure.

It is dependable on strain plus what it is grow in. I do coco or dwc. If I get less then 3 ounces a plant dry, and cured I feel like I screwed up along the way. I have had auto dry weights in the 300 gram plus on 1 plant. Good handful of half lb dry harvest. So it all depends on a lot of factors. Autos generally do poorly in soil. Also if topped or transplanted. These things don't mesh well on a limited time line. Plus if you do coco perlite mix most people don't know how to grow in it right. It is nothing like soil. Plus your temp and airflow matter. Then lights, and intensity. So there is many factors to take into consideration. So you will get answers all over the board on this question with all kinda different environments that are not being explained. If you don't know what you are doing well. I suggest finding someone who will devote time to your questions, and walk you through the grow over time. Best is someone who has results you want. Not a Google growing keyboard warrior who has no real experience. Just my suggestion. Good luck🌱