@Leo in N E Illinois I have some Live Oak and Overcup Oak acorns. Can I plant those up now and just leave them outside all fall/winter or would it be better to do cold stratification with them? From what I read, black and white oaks don’t require cold stratification to germinate, but if it’ll increase germination, or just all together better practice, I’ll go that route.
You can stratify by simply keeping the pots outside all winter. BUT, if you put pots with nuts, outdoors, expect squirrels and rodents to dig and eat the seed. Use wire mesh to exclude rodents. The trees will sprout through the mesh. Then in autumn, when they drop their leaves, the mesh can be lifted off the pots, trays or boxes and the seedlings will slide on through. I use 1/4 inch galvanized mesh, which is equivalent to 6 mm mesh. I lined a wire doge crate with the mesh, I can put several trays of pots in the cage. This works good during growing season.
For winter, the pots need the heat from the ground in my climate, so I tend to use Anderson Flats, which are 16 x 16 x 5 inches and cover them tightly with wire mesh. These then set on the ground.
As far as I know, all oak species have "better" meaning more uniform germination from a batch of seed if they are stratified. Pretty much no matter the species, a few will sprout without stratification, most will sprout a fixed number of weeks after stratification and a small number won't sprout until the second summer. In general, the vast majority of trees from temperate climates, zones 7, 6, 5 and 4 or colder all need stratification for uniform sprouting.
Warmer climates, zone 8 and above, there are other things going on as there is no serious winter. Trees from these warmer areas have different strategies.
So to repeat, yes stratify your oak seed if the seed came from an area with "real" winters. Zone 7 and colder.