Another update from me. It's too early to say anything for certain, but I decided to try this again, and I used a powershell command to uninstall Game Services:
Get-AppxPackage *gamingservices* -allusers | remove-appxpackage -allusers
And I have yet to get a gameinput reboot in over 24 hours. If this continues I'll reopen the xbox app and reinstall the services. I anticipate this will lead to continued crashing. I'll continue to post updates on this, but if anyone else wants to try this as well, the more data points the better.