So as many of you would know when you get a new xbox you will always grab host for the first day or so until the server finds out how decent your connection is then either give you host or start removing you from grabbing host.
Is there anything I could do on Horizon to possibly get this reset or is it all handled at 343’s end?
You said it yourself, the server handles everything. You can’t force host on yourself unless you’re using some sort of network manipulation, Horizon is not capable of that.