Transaction Order Issues

I have a question regarding transaction ordering on the Linea network. In scenarios where multiple transactions have the same gas fee, why does my transaction often end up after someone else’s transaction? I have encountered this situation multiple times and would like to understand the exact logic behind how transactions are selected and included in a block on Linea.

Additionally, this raises another question:

Is the Linea Sequencer deployed across multiple regions, or is it concentrated in specific locations?

Thank you!

Linea sequencer is currently centralized, I’ll check if we can share anymore information but you can learn more about linea sequencer here: Sequencer | Linea