OnePlus
Show or Hide Calendar Accounts auf OnePlus
When several Google accounts are linked on a OnePlus phone, the Calendar app merges all of their events, reminders and tasks into one view by default. There is no separate setting per account inside the system settings for this - the option lives inside the Calendar app itself, under its display settings.
To manage which accounts or categories show up, open Calendar app ➔ Open the menu ➔ Enable or disable one or more categories of the desired account. Each linked account is listed with its own categories, and every category has a toggle. Switching one off hides its events from the day, week and month views immediately, without deleting anything or unlinking the account.
This is useful when a work account and a personal account share the same calendar app, or when a shared family calendar adds too much noise to daily planning. Turning off a category only affects what is displayed locally on the phone - it does not delete events, cancel reminders or change sync settings for that account.
If events are missing entirely rather than just cluttered, check account sync settings instead of the display categories, since a paused sync looks similar to a hidden category but has a different fix.