It is a 1012 G1 2 so that would mean I have thunderbolt 3!
I will look for a corresponding dock, thank you everyone for your help
Postscript: If anyone has suggestions for a thunderbolt dock I would be happy to receive them.
I have a "new" work laptop that when I connected to my ultrawide monitor is has a max size of 2560 x 1440. The same thing happened when I plugged in my desktop which leads me to believe it is my port replicator. It is also running off of USB 3 type A instead of the USB C port on my Laptop (HP Elite x2). Would buying a port replicator/docking station that is type C be able to fix this or am I limited by my laptop? Thank you to anyone that takes the time to respond to this.