Pine Tar, Turps, and Linseed with a bit of Jap Drier was an old standard deck coating in the old days.
I used it on a couple of the planked skiffs I made and the stuff is outstanding to look at when it got a "patina" going. Was very water resistant,,, BUT, took forever to dry.
Taking forever to dry was a good thing on a ship's deck. Possibly the original "Non-Slip Deck Paint" of sorts. When it did dry, and things got slippery it was time for another coat.
If the linseed was left out I don't know how that would effect drying. I bet it would look good, but the sticky?
Hmmm, interesting idea though.