A living entity can go thru cobwebs faster if next to sweet berry bushes in an increased axis
The Bug:
When a living entity is falling next to a berry bush and a cobweb, the block that has the higher position in certain axes will be the one to change the velocity multiplier. This can cause an entity to fall quicker thru a cobweb than it normally should. The block that has the slower velocity multiplier should take priority rather than by position. Watch video for a better example than the setup below.
Steps:
1) Create a world.
2) Create the following setup:

3) Fall on the different sides to see how the velocity differs.
Code analysis:
Using Yarn mapping 1.16.3:
In the CobwebBlock, it used the entity.slowMovement method.
public void onEntityCollision(BlockState state, World world, BlockPos pos, Entity entity) { entity.slowMovement(state, new Vec3d(0.25, 0.05f, 0.25)); }
In the SweetBerryBushBlock, it uses the same thing.
public void onEntityCollision(BlockState state, World world, BlockPos pos, Entity entity) { //removed code entity.slowMovement(state, new Vec3d(0.8f, 0.75, 0.8f)); //removed code }
As they are both using the same call, the one that is called last will change the velocity.
Video: