After sync data use

How much data a month does the node use after the sync is 100%?

Hey @Tripp !
A Bitcoin Full node usually takes 20GB of Download a month.
You can check the official bitcoin.org specs here :
https://bitcoin.org/en/full-node#minimum-requirements
For disk space usage it is around 50GB/year.

This does not take in consideration any other app you have installed on your Umbrel.