Did you expand the filesystem itself?

You go from physical (your dd) to encrypted (luks) to lvm(if used) to your filesytem itself.

You probably have btrfs so check out Resizing btrfs

Edit: I can read, you have ext4 :)

Check out resize2fs, IIRC it can do it live on a mounted partition

I actually prefer the light grey walls, I have lots of smart lights that mean I can bounce light off them and give rooms whatever mood I want anytime I want. The walls are just the canvas now. Don’t underestimate an rgb light pointed at a wall to make things really colorful without being overly bright, and nowadays relatively privacy-friendly Bluetooth lights are available down at hardware stores for cheap.