The window screen you have on that tree is going to be able to protect that tree for years, that looks like about the height I run on most of my trees now just because of economics of cost, but this year the snow is way deeper than it has been for years so there is potential for losses due to the snow being at the top of the screen - bunnies are the bigger issue this winter, I dont have many where I have young trees except in my nursery.
I leave those tree tags lose or put them on the stake (use metal tags permanently, I only now use plastic for the first few month post grafting till I know the scion took) - I have accidently buried them before on some of my trees I have potted and found them tight to point of almost girthing the tree - just a heads up on them. Nearly all of those that come from a nursery will not fade but I bought a roll with something like 5000 tags and they turned out to be pure crap even with permanent marker they will fade.
I buy and am re using the fleet farm 3/8 inch 4 foot fiberglass rods ( the coated ones) on almost all my trees, so 90+ percent are staked right away, adds some stability to protect the scion union, prevents birds from perching on the scion and bending/moving the graft union, same with strong winds, the window screen provides a lot of protection for that as well. Special trees get taller stakes.
The only real issues I have had with window screen is one: wind or some form of magic lifting of the screen - solved by splaying out the bottom screen a bit and putting dirt on the screen or bury the screen in a bit.
2nd issue is not enough length - I tend to keep them shorter so the leaves are shed on the ground and not into the screen and cost. I was doing about a hundred plus grafts a year and it just got expensive .
Some like to paint the trunks white - I should do that but I have found the screen prevents sun scolding at least to the height of the screen.
The screen can be a pain when taking off the grafting tape - I usually can just slide the screen up and get at the union.
One side note about the window screen, in x number of years when the screen gets tight and starts to pop the staples, spin it 90 degrees and re staple by that time the bark apart from around 3-6 inches around the base are all they seem to chew on so you wont need 18-24 plus inches of protection. On large dia trees with still very smooth soft bark I have doubled up old window screen to wrap around.