Can a feature be added that enables the user to adjust the time span of an event that they were only invited to?

The changes should only be reflected on their own calendar. This is useful if the user was part of a mass invite and can only attend for, e.g., 45 minutes or only in the second half. This also helps to declutter a calendar with overlapping events. We often have two overlapping events and only attend the first half of the first event and the second half of the second one.

If the person who sent the invite updates/changes the time of the event, then local user changes shall be overridden and the updated calendar shall be shown.

Asking the person who sent the invite to change the time is not an option, as they would have to change the time for everyone.

Example (see screenshot): If owner of green calendar invites owner of purple calendar (and others) to a 2-hour-long event, then owner of purple calendar should be able to adjust the event length/beginning/end only on their own calendar.