The adhesive that comes pre-installed on most ipad digi's are complete garbage in my experience, however keep in mind it's really the cleaning/surface prep that determines the longevity of the adhesive!
As far as adhesive, the TESA tape from IFIXIT has really improved my repairs. On top of that, I use adhesive remover to get rid of all the left over adhesive on the frame after I scrape the thickest glue off. Once the surface is like new, I give it a good spray of alcohol and clean away residue . Only then do I apply the TESA tape. I take it a step further by using adhesive promoter as well , but this isn't necessary!
Adhering new screens to the frame is a huge problem in this industry (with every device, not just ipad's) and I'm surprised it's so glanced over when people post repair videos