Autos don’t make as many trichomes- doesn’t mean it can’t be good - the genetics just don’t compare to feminized or regular seeds
Autos are in flower and a veg state at the same time, limiting the trichome production somewhat. Some of the breeding has produced great results, however in general autos are not as “strong “ a smoke as photos.
This is a general statement- your results will vary and I am sure there are some great auto strains.
I have seen many comments in this forum from auto growers that they were not really happy with their results.- which could be from many reasons besides breeding- your results may vary.
I like photos- but I received a couple free auto seeds in my last purchase so I will soon see for myself- with the exact same growing conditions as the photos it will be a good comparison.