You can set automatic approval of requests on two levels:
automatic approval of all employee requests
You can create an approval process with automatic approval of all requests:
Configuration → Approval flows → Basic approval flow→Automatic approval→ Save
automatic approval only for the selected type of request, e.g. remote work
Also, you can set up an approval process with automatic approval requests of the exact absence type:
Configuration → Approval flows → Basic approval flow→Add alternative flow→ Remote work→Automatic approval→ Save
In the same way, you can create alternative approval processes for different absence types.