Interesting article from BTB....
https://www.bloggingtheboys.com/201...nd-dunk-quarterback-or-do-the-stats-otherwise
This chronicles his rookie season and not this year, but I think it's still worthy of perusal. The author doesn't really answer whether he's dink-and-dunk / check-down or not, but does make some very valuable observations.
Maybe the most salient is that, yes, it does show that the preponderance of Dak's throws are within 20 yard of the LoS, but that Dak's success when going beyond 20 yards is much, much higher than those QBs that played Dallas. Make of that what you will.
Also, Dak had 6 TDs on 20+ yard passes whereas the opponents only 2. Again, make of that what you will.
Finally, it points out that Dak doesn't throw down the seam as much as the other opponents. Is that because of Dak, or the capabilities of the TE, or not within the playbook? I don't know which, but would find it strange the Garrett wouldn't have this in the playbook considering that was an integral part of the early 90's with Jay Novacek.