I couldn't find one for 1.14.4 but would I would like is that when someone is pulling back their bow you can see the line as to where it will land, when they let go you can still see where the arrow will land. If this is possible then please may someone do it <3
The projectile line as some kind of particle (red preferably) (:
This is not possible because the existence /setblock Minecraft:stone does not work with four directional entities summoned on each side of it simultaneously.
If stone did not destroy stone or logically that way the comparison was something else then your request would logically be possible.
You could recognize the bow or arrow exists, but not where it lands if you didn't know how to set a stone block with a command that way where there are both non-intersecting and intersecting lines.
This is also something that is replicable that way by executing 4 entities on the inside border of a 1 block space towards each other as four directions.
The result is that the collision of the entities causes the game to crash instead of the four entities forming into one in the center of the block.
Although it would be possible to create a mod that executes an entity at the thrown projectile either that or a fired one for that matter that way, although the drawback to that is that it most likely would not work with modded thrown or fired items and things or something.
Creating such an entity would also go by the occurrence of logic referenceable to the shape of the individual entity too as well. The collision of a cube colliding inside of a sphere or logically if the sphere collided inside of the cube being all of that possible?
Although the one thing you can logically draw from this conclusion is that falling_block as an entity does not logically exist more than a block of stone that is set therefor logically occurring an arrow, "That logically, I knew where it had landed being an arrow that way.", thought the man with the hat that way next to a tree that way or two.
Although what happened in reality is that the ground was actually the tree and the tree grew upside down that way explaining how come all textures or animations can not flow north in a given existing universe, although one can fire a bow, but then how does it go together with stone? Hmm, perhaps a projectile that way. Although, there are no guns in Minecraft. You could throw a tree that way, but then if you punched one though that way instead of using an axe.
"If you could type gamemode 1 or gamemode 0 and it worked that way though."