Dracaena problems

[Alexandria Wood]

Hi there I just bought some new houseplants not even a week ago. One came from a local grower chick I know, and the larger one came from Orchard Supply Hardware. I now know I should have never bought from a retail store The larger one has browning tips and what looks to be leaf spot. The smaller one has started to get one of these sppts as well along with very strange translucent almost coloring splotching. Im trying to save the little plant that I know was healthy when I brought it home. They are both near south facing windows, but have filtered light as I live in a condo of three stories and I'm on the middle floor with a deck and trees blocking almost all direct sunlight. If you can help identify what's wrong, I will seriously love you long time!!!!! Also, just a side note, but the small dracaena seems to be pot bound, so Im not sure if this is causing anything either. Another note, I live in gresham, OR and the air quality here is terrible right now because of the fires; and I dont have AC so I have to leave a window open with a fan. Not sure if this means anything, but I figured the more info the better! Thanks ahead of time!