RPI4 Running off USB SSD: How to expand the partitions?

So i just did the switch from SD to SSD and everything went alright.

But since i used a clone of the SD onto the SSD, its seems to have retained the SD’s disk size (64GB) and not my SSDs true size of 500GB. Is there a way to expand the partition without starting over again?

Get a linux live disk, boot it up, attach the USB and run GParted. Then just drag the partition out, and click save.