Drip feed is a feature that automatically dispatches service appointments to resources based on predefined criteria and time intervals. By using dripfeed, the system can handle same-day service appointments and adjust the technician's schedule accordingly.
References: https://help.salesforce.com/s/articleView?id=sf.fsl_drip_feed.htm&type=5

These are three factors that should be considered when configuring routing. Routing is the process of finding the best resource for a service appointment based on variouscriteria and constraints. A schedule policy is used to define the routing preferences and rules for a service territory or operating hours. A work rule is used to define a scheduling constraint or preference for a service appointment or a resource. A service objective is used to define a scheduling goal or metric for a service appointment. The Resource Availability work rule is used to calculate travel time and breaks as part of the resource's availability. The Default Travel Speed is used to estimate thetravel time between locations if a different travel speed is not specified for the resource.
References: https://help.salesforce.com/s/articleView?id=sf.fsl_routing.htm&type=5 https://help.salesforce.
com/s/articleView?id=sf.fsl_schedule_policies.htm&type=5https://help.salesforce.com/s/articleView?id=sf.
fsl_work_rules.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.fsl_service_objectives.
htm&type=5

Frequency is a field on the Maintenance Plan objectthat defines how often work orders should be generated from maintenance plans such as daily, weekly, or monthly[228]. Generation Timeframe is a field on the Maintenance Plan object that defines how many work orders should be generated from maintenance plans at a time such as 1, 2, or 12[229]. Auto-generate work orders is a field on the Maintenance Plan object that enables or disables the automatic generation of work orders from maintenance plans[230]. Setting Frequency to 1 Month; Generation Timeframe of 12; uncheck Auto-generate work orders would allow Universal Containers to offer customers a MaintenancePlan that provides 12 monthly checkups where the customer will call to schedule each visit by creating maintenance plans that generate one work order permonth for 12 months but do not generate them automatically until the customer calls[231]. Setting Frequency to 1 Month; Generation Timeframe of 1; check Auto-generate work orders would not allow Universal Containers to offer customers a Maintenance Plan that provides 12 monthly checkups where the customer will call to schedule each visit. It would create maintenance plans that generate one work order per month for one month and generate them automatically without waiting for customer calls. Setting Frequency to 1 Month; Generation Timeframe of 12; check Auto-generate work orders would not allow Universal Containers to offer customers a Maintenance Plan that provides 12 monthly checkups where the customer will call to schedule each visit. It would create maintenance plans that generate one work order per month for 12 months and generate them automatically without waiting for customer calls. Setting Frequency to 1 Month; Generation Timeframe of 1; uncheck Auto-generate work orders would not allow Universal Container

These two troubleshooting steps should betaken to resolve the issue, as they could explain why the service appointment status is not updated correctly on the console. References:https://help.salesforce.com/s
/articleView?id=sf.fs_mobile_troubleshooting.htm&type=5

Arrival Window Start and Arrival Window End are fields on the Service Appointment that indicate when a technician is expected to arrive at a customer site based on travel time and service duration calculations.
These fields can be shared with customersto set expectations around upcoming appointments. Scheduled End and Scheduled Start are fields on the Service Appointment that indicate when a technician is scheduled to start and end their service based on their availability and assigned time slots. These fields are not accurate indicators of when a technician will arrive at a customer site, as they do not account for travel time and service duration variations. References:https://help.salesforce.com/s/articleView?id=sf.
fs_service_appointments.htm&type=5