Hi @jminns90 ,
During a server upgrade, you must stop the AlteryxService on all of your nodes, which is sufficient for all schedules to be disabled.
I suggest reading these topics before your upgrade since important guidelines must be followed.
https://help.alteryx.com/20223/server/install-or-upgrade-server
https://help.alteryx.com/sites/default/files/2023-02/Server%20Upgrade%20Checklist_v3.pdf
Best regards,
Fernando Vizcaino