The new Sync Scheduling features of 2.4 apply "globally" that is, they affect all folders within that particular instance of Sync - they are not "per folder" settings.
More information on the Sync Scheduler may be found here: https://help.getsync.com/hc/en-us/articles/210783266
How to best request this for future versions? Because I like the limitation, but the fact that it applies globally really bugs me.