Power disconnection countermeasure for mod dwarf

mod dwarf is running on linux, but doesn’t it need a shutdown process?
However, mod dwarf terminates by removing power.
Is this safe?
What measures are taken to prevent power loss?

For example, overlayroot is a typical measure.
What techniques can be used to safely remove power? I am curious.

That’s my mod duo x mounted RW partitions (other are read only or ramfs, so power loss data corruption does not happen.

/dev/mmcblk0p5 on /data type ext4 (rw,noatime,nodelalloc,errors=remount-ro,data=ordered)
/dev/mmcblk0p5 on /root type ext4 (rw,noatime,nodelalloc,errors=remount-ro,data=ordered)

Maybe these mounting params would answer your question.
At least nodelalloc and data=ordered seem to be related to mitigating the risks.

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Thank you. I am convinced.