This one could affect satellites and GPS and all the other typical things that get affected..
From solar ham:
A coronal mass ejection (CME) with a halo signature is evident following the major X9.0 solar flare this morning. Because the source region AR 3842 is directly facing Earth, the plasma cloud appears to be aimed directly towards our planet. A further update will be provided later today once a CME tracking model becomes available. Please note that a faint CME associated with the X7 event on October 1st is expected to pass our planet sometime during the next few days. Aurora sky watchers at middle to high latitudes should have their camera batteries charged up should geomagnetic storming be observed as forecast.
SolarHam.com
And at this point, it appears to be the largest solar flare, since at least 2017.