I use cardboard a lot. Mostly for tomatoes, to prevent fungal spores from splashing from soil onto leaves, keep the soil shaded a and prevent drying out, and stop weeds. At the end of the year, I compost it. I dont know about the glue situation. I tried butcher paper but it rotted too fast. Some paper grocery bags are a little better.
I used cardboard to kill the grass where I wanted my blackberry patch to be. I put two layers, most boxes were Amazon boxes, and then kept it wet. I had to put bricks on to stop the wind blowing it. It lasted a year before things like camphor trees sprouted through it. Underneath it was totally loaded with worm castings !! So, I like cardboard for the reason I used it for but I wouldn't say it does a better job keeping weeds down than landscape fabric. I like that the worms loved it, though.
