Only 100 of certain redstone components can be processed simultaneously in a chunk

The English names for the blocks mentioned are: observers, dispensers, droppers, and redstone lamps.

The behavior described is a result of Bedrock Edition's pendingTick cap. Pending ticks are a kind of pre-scheduled block update. The game will execute a maximum of 100 pending ticks in each chunk during each game tick.

Other blocks that use pending ticks include detector rails, portal tiles (when spawning zombified piglins after a portal is lit), and water and lava spreading.

I expect the described behavior is working as intended because the pending tick cap serves to prevent processing overload that could crash the game or corrupt chunk data. (See for example MCPE-94942.)

You can set a global upper limit based on the simulated distance

This will result in a thrower working multiple times simultaneously

Would it be possible for you to attach a world that can be used to reproduce this? Any attempt I've made at recreating the setup shown in the videos hasn't been successful in reproducing the issue.

Confirmed, I've believe found reproduce through in 1.21.10.21 Preview

Here is a new world file with chunk addon tools:

^{Which underlying cause of chunks perfectly in center place that i recreated the setup.}