Filter modules execution sequence

Elastic Stack Logstash
1

In which sequence does the code present in the filter section is executed.

I think it is not being executed sequentially ie the Order in which it is written in the file.
I know that mutate has its own order of execution which it follows.

Please share your thoughts, anything is appreciated.

2

Filters are executed in the order they are written. As you say, the execution of options within a mutate filter is fixed.