Do my goals, settings and subscription sync as well as my diary?

Your saved account profile, goal versions, diary and account settings belong to the same Calsa account. Your recognised subscription also provides access across supported platforms. Sign in to that account to use them on another device.

Device-specific permissions and native connections still need attention on the device where they operate. Apple Health and Health Connect are connected in their respective mobile store apps, and notification permission belongs to the phone or browser. If values differ, check the account, saved state and pending sync before assuming a goal was changed.